Home / 29,015.18-39,780.18-28,490.30

Finding the Fourth Proportional to 29,015.18, 39,780.18 and 28,490.30

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Solution

The fourth proportional to 29,015.18, 39,780.18 and 28,490.30 is: 39,060.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,015.18 : 39,780.18 = 28,490.30 : x
  2. Step 2: Convert to fraction form
    29,015.18/39,780.18 = 28,490.30/x
  3. Step 3: Cross multiply
    29,015.18x = 39,780.18 × 28,490.30
  4. Step 4: Simplify right side
    29,015.18x = 1,133,348,920.90
  5. Step 5: Solve for x
    x = 1,133,348,920.90/29,015.18
  6. Step 6: Final answer
    x = 39,060.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.