Home / 38,280.24-57,428.02-21,437.20

Finding the Fourth Proportional to 38,280.24, 57,428.02 and 21,437.20

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Solution

The fourth proportional to 38,280.24, 57,428.02 and 21,437.20 is: 32,160.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,280.24 : 57,428.02 = 21,437.20 : x
  2. Step 2: Convert to fraction form
    38,280.24/57,428.02 = 21,437.20/x
  3. Step 3: Cross multiply
    38,280.24x = 57,428.02 × 21,437.20
  4. Step 4: Simplify right side
    38,280.24x = 1,231,095,806.77
  5. Step 5: Solve for x
    x = 1,231,095,806.77/38,280.24
  6. Step 6: Final answer
    x = 32,160.09

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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.