Home / 30,753.29-42,439.35-17,328.87

Finding the Fourth Proportional to 30,753.29, 42,439.35 and 17,328.87

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Solution

The fourth proportional to 30,753.29, 42,439.35 and 17,328.87 is: 23,913.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,753.29 : 42,439.35 = 17,328.87 : x
  2. Step 2: Convert to fraction form
    30,753.29/42,439.35 = 17,328.87/x
  3. Step 3: Cross multiply
    30,753.29x = 42,439.35 × 17,328.87
  4. Step 4: Simplify right side
    30,753.29x = 735,425,979.03
  5. Step 5: Solve for x
    x = 735,425,979.03/30,753.29
  6. Step 6: Final answer
    x = 23,913.73

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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.