Home / 31,020.48-42,808.68-17,591.40

Finding the Fourth Proportional to 31,020.48, 42,808.68 and 17,591.40

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Solution

The fourth proportional to 31,020.48, 42,808.68 and 17,591.40 is: 24,276.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,020.48 : 42,808.68 = 17,591.40 : x
  2. Step 2: Convert to fraction form
    31,020.48/42,808.68 = 17,591.40/x
  3. Step 3: Cross multiply
    31,020.48x = 42,808.68 × 17,591.40
  4. Step 4: Simplify right side
    31,020.48x = 753,064,613.35
  5. Step 5: Solve for x
    x = 753,064,613.35/31,020.48
  6. Step 6: Final answer
    x = 24,276.37

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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.