Home / 21,663.47-29,884.19-14,577.59

Finding the Fourth Proportional to 21,663.47, 29,884.19 and 14,577.59

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Solution

The fourth proportional to 21,663.47, 29,884.19 and 14,577.59 is: 20,109.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,663.47 : 29,884.19 = 14,577.59 : x
  2. Step 2: Convert to fraction form
    21,663.47/29,884.19 = 14,577.59/x
  3. Step 3: Cross multiply
    21,663.47x = 29,884.19 × 14,577.59
  4. Step 4: Simplify right side
    21,663.47x = 435,639,246.99
  5. Step 5: Solve for x
    x = 435,639,246.99/21,663.47
  6. Step 6: Final answer
    x = 20,109.40

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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.