Home / 29,987.76-45,001.68-12,457.52

Finding the Fourth Proportional to 29,987.76, 45,001.68 and 12,457.52

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Solution

The fourth proportional to 29,987.76, 45,001.68 and 12,457.52 is: 18,694.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,987.76 : 45,001.68 = 12,457.52 : x
  2. Step 2: Convert to fraction form
    29,987.76/45,001.68 = 12,457.52/x
  3. Step 3: Cross multiply
    29,987.76x = 45,001.68 × 12,457.52
  4. Step 4: Simplify right side
    29,987.76x = 560,609,328.63
  5. Step 5: Solve for x
    x = 560,609,328.63/29,987.76
  6. Step 6: Final answer
    x = 18,694.61

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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.