Home / 28,511.70-42,840.45-25,304.10

Finding the Fourth Proportional to 28,511.70, 42,840.45 and 25,304.10

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Solution

The fourth proportional to 28,511.70, 42,840.45 and 25,304.10 is: 38,020.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,511.70 : 42,840.45 = 25,304.10 : x
  2. Step 2: Convert to fraction form
    28,511.70/42,840.45 = 25,304.10/x
  3. Step 3: Cross multiply
    28,511.70x = 42,840.45 × 25,304.10
  4. Step 4: Simplify right side
    28,511.70x = 1,084,039,030.85
  5. Step 5: Solve for x
    x = 1,084,039,030.85/28,511.70
  6. Step 6: Final answer
    x = 38,020.85

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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.