Home / 20,084.23-27,681.65-13,357.85

Finding the Fourth Proportional to 20,084.23, 27,681.65 and 13,357.85

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Solution

The fourth proportional to 20,084.23, 27,681.65 and 13,357.85 is: 18,410.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,084.23 : 27,681.65 = 13,357.85 : x
  2. Step 2: Convert to fraction form
    20,084.23/27,681.65 = 13,357.85/x
  3. Step 3: Cross multiply
    20,084.23x = 27,681.65 × 13,357.85
  4. Step 4: Simplify right side
    20,084.23x = 369,767,173.35
  5. Step 5: Solve for x
    x = 369,767,173.35/20,084.23
  6. Step 6: Final answer
    x = 18,410.82

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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.