Home / 20,259,254.25-27,960,439.01-11,555,431.65

Finding the Fourth Proportional to 20,259,254.25, 27,960,439.01 and 11,555,431.65

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Solution

The fourth proportional to 20,259,254.25, 27,960,439.01 and 11,555,431.65 is: 15,948,017.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,259,254.25 : 27,960,439.01 = 11,555,431.65 : x
  2. Step 2: Convert to fraction form
    20,259,254.25/27,960,439.01 = 11,555,431.65/x
  3. Step 3: Cross multiply
    20,259,254.25x = 27,960,439.01 × 11,555,431.65
  4. Step 4: Simplify right side
    20,259,254.25x = 323,094,941,826,271.50
  5. Step 5: Solve for x
    x = 323,094,941,826,271.50/20,259,254.25
  6. Step 6: Final answer
    x = 15,948,017.53

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.