Home / 31,125.74-42,957.12-17,329.46

Finding the Fourth Proportional to 31,125.74, 42,957.12 and 17,329.46

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Solution

The fourth proportional to 31,125.74, 42,957.12 and 17,329.46 is: 23,916.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,125.74 : 42,957.12 = 17,329.46 : x
  2. Step 2: Convert to fraction form
    31,125.74/42,957.12 = 17,329.46/x
  3. Step 3: Cross multiply
    31,125.74x = 42,957.12 × 17,329.46
  4. Step 4: Simplify right side
    31,125.74x = 744,423,692.76
  5. Step 5: Solve for x
    x = 744,423,692.76/31,125.74
  6. Step 6: Final answer
    x = 23,916.66

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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.