Home / 38,275.02-57,410.94-13,320.72

Finding the Fourth Proportional to 38,275.02, 57,410.94 and 13,320.72

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Solution

The fourth proportional to 38,275.02, 57,410.94 and 13,320.72 is: 19,980.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,275.02 : 57,410.94 = 13,320.72 : x
  2. Step 2: Convert to fraction form
    38,275.02/57,410.94 = 13,320.72/x
  3. Step 3: Cross multiply
    38,275.02x = 57,410.94 × 13,320.72
  4. Step 4: Simplify right side
    38,275.02x = 764,755,056.68
  5. Step 5: Solve for x
    x = 764,755,056.68/38,275.02
  6. Step 6: Final answer
    x = 19,980.53

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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.