Home / 36,429.12-54,637.20-10,126.80

Finding the Fourth Proportional to 36,429.12, 54,637.20 and 10,126.80

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Solution

The fourth proportional to 36,429.12, 54,637.20 and 10,126.80 is: 15,188.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,429.12 : 54,637.20 = 10,126.80 : x
  2. Step 2: Convert to fraction form
    36,429.12/54,637.20 = 10,126.80/x
  3. Step 3: Cross multiply
    36,429.12x = 54,637.20 × 10,126.80
  4. Step 4: Simplify right side
    36,429.12x = 553,299,996.96
  5. Step 5: Solve for x
    x = 553,299,996.96/36,429.12
  6. Step 6: Final answer
    x = 15,188.40

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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.