Home / 19,838.64-29,680.20-14,302.56

Finding the Fourth Proportional to 19,838.64, 29,680.20 and 14,302.56

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Solution

The fourth proportional to 19,838.64, 29,680.20 and 14,302.56 is: 21,397.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,838.64 : 29,680.20 = 14,302.56 : x
  2. Step 2: Convert to fraction form
    19,838.64/29,680.20 = 14,302.56/x
  3. Step 3: Cross multiply
    19,838.64x = 29,680.20 × 14,302.56
  4. Step 4: Simplify right side
    19,838.64x = 424,502,841.31
  5. Step 5: Solve for x
    x = 424,502,841.31/19,838.64
  6. Step 6: Final answer
    x = 21,397.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.