Home / 20,176.95-27,841.47-11,223.31

Finding the Fourth Proportional to 20,176.95, 27,841.47 and 11,223.31

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Solution

The fourth proportional to 20,176.95, 27,841.47 and 11,223.31 is: 15,486.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,176.95 : 27,841.47 = 11,223.31 : x
  2. Step 2: Convert to fraction form
    20,176.95/27,841.47 = 11,223.31/x
  3. Step 3: Cross multiply
    20,176.95x = 27,841.47 × 11,223.31
  4. Step 4: Simplify right side
    20,176.95x = 312,473,448.67
  5. Step 5: Solve for x
    x = 312,473,448.67/20,176.95
  6. Step 6: Final answer
    x = 15,486.65

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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.