Home / 30,861.28-42,587.76-17,433.76

Finding the Fourth Proportional to 30,861.28, 42,587.76 and 17,433.76

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Solution

The fourth proportional to 30,861.28, 42,587.76 and 17,433.76 is: 24,058.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,861.28 : 42,587.76 = 17,433.76 : x
  2. Step 2: Convert to fraction form
    30,861.28/42,587.76 = 17,433.76/x
  3. Step 3: Cross multiply
    30,861.28x = 42,587.76 × 17,433.76
  4. Step 4: Simplify right side
    30,861.28x = 742,464,786.78
  5. Step 5: Solve for x
    x = 742,464,786.78/30,861.28
  6. Step 6: Final answer
    x = 24,058.13

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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.