Home / 20,897.90-31,349.59-11,037.57

Finding the Fourth Proportional to 20,897.90, 31,349.59 and 11,037.57

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Solution

The fourth proportional to 20,897.90, 31,349.59 and 11,037.57 is: 16,557.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,897.90 : 31,349.59 = 11,037.57 : x
  2. Step 2: Convert to fraction form
    20,897.90/31,349.59 = 11,037.57/x
  3. Step 3: Cross multiply
    20,897.90x = 31,349.59 × 11,037.57
  4. Step 4: Simplify right side
    20,897.90x = 346,023,294.10
  5. Step 5: Solve for x
    x = 346,023,294.10/20,897.90
  6. Step 6: Final answer
    x = 16,557.80

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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.