Home / 28,333.38-39,108.30-18,901.92

Finding the Fourth Proportional to 28,333.38, 39,108.30 and 18,901.92

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Solution

The fourth proportional to 28,333.38, 39,108.30 and 18,901.92 is: 26,090.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,333.38 : 39,108.30 = 18,901.92 : x
  2. Step 2: Convert to fraction form
    28,333.38/39,108.30 = 18,901.92/x
  3. Step 3: Cross multiply
    28,333.38x = 39,108.30 × 18,901.92
  4. Step 4: Simplify right side
    28,333.38x = 739,221,957.94
  5. Step 5: Solve for x
    x = 739,221,957.94/28,333.38
  6. Step 6: Final answer
    x = 26,090.14

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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.