Home / 37,287.32-51,457.02-20,520.68

Finding the Fourth Proportional to 37,287.32, 51,457.02 and 20,520.68

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Solution

The fourth proportional to 37,287.32, 51,457.02 and 20,520.68 is: 28,318.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,287.32 : 51,457.02 = 20,520.68 : x
  2. Step 2: Convert to fraction form
    37,287.32/51,457.02 = 20,520.68/x
  3. Step 3: Cross multiply
    37,287.32x = 51,457.02 × 20,520.68
  4. Step 4: Simplify right side
    37,287.32x = 1,055,933,041.17
  5. Step 5: Solve for x
    x = 1,055,933,041.17/37,287.32
  6. Step 6: Final answer
    x = 28,318.82

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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.