Home / 37,288.48-51,457.68-20,521.12

Finding the Fourth Proportional to 37,288.48, 51,457.68 and 20,521.12

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Solution

The fourth proportional to 37,288.48, 51,457.68 and 20,521.12 is: 28,318.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,288.48 : 51,457.68 = 20,521.12 : x
  2. Step 2: Convert to fraction form
    37,288.48/51,457.68 = 20,521.12/x
  3. Step 3: Cross multiply
    37,288.48x = 51,457.68 × 20,521.12
  4. Step 4: Simplify right side
    37,288.48x = 1,055,969,226.20
  5. Step 5: Solve for x
    x = 1,055,969,226.20/37,288.48
  6. Step 6: Final answer
    x = 28,318.91

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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.