Home / 28,265.25-42,398.70-7,488.75

Finding the Fourth Proportional to 28,265.25, 42,398.70 and 7,488.75

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Solution

The fourth proportional to 28,265.25, 42,398.70 and 7,488.75 is: 11,233.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,265.25 : 42,398.70 = 7,488.75 : x
  2. Step 2: Convert to fraction form
    28,265.25/42,398.70 = 7,488.75/x
  3. Step 3: Cross multiply
    28,265.25x = 42,398.70 × 7,488.75
  4. Step 4: Simplify right side
    28,265.25x = 317,513,264.63
  5. Step 5: Solve for x
    x = 317,513,264.63/28,265.25
  6. Step 6: Final answer
    x = 11,233.34

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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.