Home / 37,965.20-56,909.68-12,988.16

Finding the Fourth Proportional to 37,965.20, 56,909.68 and 12,988.16

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Solution

The fourth proportional to 37,965.20, 56,909.68 and 12,988.16 is: 19,469.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,965.20 : 56,909.68 = 12,988.16 : x
  2. Step 2: Convert to fraction form
    37,965.20/56,909.68 = 12,988.16/x
  3. Step 3: Cross multiply
    37,965.20x = 56,909.68 × 12,988.16
  4. Step 4: Simplify right side
    37,965.20x = 739,152,029.39
  5. Step 5: Solve for x
    x = 739,152,029.39/37,965.20
  6. Step 6: Final answer
    x = 19,469.20

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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.