Home / 31,053.08-42,854.01-16,906.70

Finding the Fourth Proportional to 31,053.08, 42,854.01 and 16,906.70

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Solution

The fourth proportional to 31,053.08, 42,854.01 and 16,906.70 is: 23,331.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,053.08 : 42,854.01 = 16,906.70 : x
  2. Step 2: Convert to fraction form
    31,053.08/42,854.01 = 16,906.70/x
  3. Step 3: Cross multiply
    31,053.08x = 42,854.01 × 16,906.70
  4. Step 4: Simplify right side
    31,053.08x = 724,519,890.87
  5. Step 5: Solve for x
    x = 724,519,890.87/31,053.08
  6. Step 6: Final answer
    x = 23,331.66

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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.