Home / 15,239.94-22,723-13,938.18

Finding the Fourth Proportional to 15,239.94, 22,723 and 13,938.18

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Solution

The fourth proportional to 15,239.94, 22,723 and 13,938.18 is: 20,782.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,239.94 : 22,723 = 13,938.18 : x
  2. Step 2: Convert to fraction form
    15,239.94/22,723 = 13,938.18/x
  3. Step 3: Cross multiply
    15,239.94x = 22,723 × 13,938.18
  4. Step 4: Simplify right side
    15,239.94x = 316,717,264.14
  5. Step 5: Solve for x
    x = 316,717,264.14/15,239.94
  6. Step 6: Final answer
    x = 20,782.05

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.