Home / 35,387.52-48,835.38-20,281.50

Finding the Fourth Proportional to 35,387.52, 48,835.38 and 20,281.50

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Solution

The fourth proportional to 35,387.52, 48,835.38 and 20,281.50 is: 27,988.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,387.52 : 48,835.38 = 20,281.50 : x
  2. Step 2: Convert to fraction form
    35,387.52/48,835.38 = 20,281.50/x
  3. Step 3: Cross multiply
    35,387.52x = 48,835.38 × 20,281.50
  4. Step 4: Simplify right side
    35,387.52x = 990,454,759.47
  5. Step 5: Solve for x
    x = 990,454,759.47/35,387.52
  6. Step 6: Final answer
    x = 27,988.82

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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.