Home / 28,006.20-42,009.30-25,187.40

Finding the Fourth Proportional to 28,006.20, 42,009.30 and 25,187.40

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Solution

The fourth proportional to 28,006.20, 42,009.30 and 25,187.40 is: 37,781.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,006.20 : 42,009.30 = 25,187.40 : x
  2. Step 2: Convert to fraction form
    28,006.20/42,009.30 = 25,187.40/x
  3. Step 3: Cross multiply
    28,006.20x = 42,009.30 × 25,187.40
  4. Step 4: Simplify right side
    28,006.20x = 1,058,105,042.82
  5. Step 5: Solve for x
    x = 1,058,105,042.82/28,006.20
  6. Step 6: Final answer
    x = 37,781.10

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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.