Home / 21,034.28-31,534.14-14,352.32

Finding the Fourth Proportional to 21,034.28, 31,534.14 and 14,352.32

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Solution

The fourth proportional to 21,034.28, 31,534.14 and 14,352.32 is: 21,516.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,034.28 : 31,534.14 = 14,352.32 : x
  2. Step 2: Convert to fraction form
    21,034.28/31,534.14 = 14,352.32/x
  3. Step 3: Cross multiply
    21,034.28x = 31,534.14 × 14,352.32
  4. Step 4: Simplify right side
    21,034.28x = 452,588,068.20
  5. Step 5: Solve for x
    x = 452,588,068.20/21,034.28
  6. Step 6: Final answer
    x = 21,516.69

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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.