Home / 21,298.78-31,948.17-16,710.94

Finding the Fourth Proportional to 21,298.78, 31,948.17 and 16,710.94

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Solution

The fourth proportional to 21,298.78, 31,948.17 and 16,710.94 is: 25,066.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,298.78 : 31,948.17 = 16,710.94 : x
  2. Step 2: Convert to fraction form
    21,298.78/31,948.17 = 16,710.94/x
  3. Step 3: Cross multiply
    21,298.78x = 31,948.17 × 16,710.94
  4. Step 4: Simplify right side
    21,298.78x = 533,883,951.98
  5. Step 5: Solve for x
    x = 533,883,951.98/21,298.78
  6. Step 6: Final answer
    x = 25,066.41

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Similar ratio
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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.