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Finding the Fourth Proportional to 29,681, 40,948.42 and 19,614.28

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Solution

The fourth proportional to 29,681, 40,948.42 and 19,614.28 is: 27,060.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,681 : 40,948.42 = 19,614.28 : x
  2. Step 2: Convert to fraction form
    29,681/40,948.42 = 19,614.28/x
  3. Step 3: Cross multiply
    29,681x = 40,948.42 × 19,614.28
  4. Step 4: Simplify right side
    29,681x = 803,173,775.44
  5. Step 5: Solve for x
    x = 803,173,775.44/29,681
  6. Step 6: Final answer
    x = 27,060.20

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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.