Home / 40,713.90-61,073.82-12,630.40

Finding the Fourth Proportional to 40,713.90, 61,073.82 and 12,630.40

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Solution

The fourth proportional to 40,713.90, 61,073.82 and 12,630.40 is: 18,946.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,713.90 : 61,073.82 = 12,630.40 : x
  2. Step 2: Convert to fraction form
    40,713.90/61,073.82 = 12,630.40/x
  3. Step 3: Cross multiply
    40,713.90x = 61,073.82 × 12,630.40
  4. Step 4: Simplify right side
    40,713.90x = 771,386,776.13
  5. Step 5: Solve for x
    x = 771,386,776.13/40,713.90
  6. Step 6: Final answer
    x = 18,946.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.