Home / 28,510.28-39,318.72-17,900.92

Finding the Fourth Proportional to 28,510.28, 39,318.72 and 17,900.92

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Solution

The fourth proportional to 28,510.28, 39,318.72 and 17,900.92 is: 24,687.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,510.28 : 39,318.72 = 17,900.92 : x
  2. Step 2: Convert to fraction form
    28,510.28/39,318.72 = 17,900.92/x
  3. Step 3: Cross multiply
    28,510.28x = 39,318.72 × 17,900.92
  4. Step 4: Simplify right side
    28,510.28x = 703,841,261.22
  5. Step 5: Solve for x
    x = 703,841,261.22/28,510.28
  6. Step 6: Final answer
    x = 24,687.28

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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.