Home / 21,666.60-29,882.92-14,115.31

Finding the Fourth Proportional to 21,666.60, 29,882.92 and 14,115.31

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Solution

The fourth proportional to 21,666.60, 29,882.92 and 14,115.31 is: 19,468.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,666.60 : 29,882.92 = 14,115.31 : x
  2. Step 2: Convert to fraction form
    21,666.60/29,882.92 = 14,115.31/x
  3. Step 3: Cross multiply
    21,666.60x = 29,882.92 × 14,115.31
  4. Step 4: Simplify right side
    21,666.60x = 421,806,679.51
  5. Step 5: Solve for x
    x = 421,806,679.51/21,666.60
  6. Step 6: Final answer
    x = 19,468.06

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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.