Home / 48,409.31-66,798.88-28,251.55

Finding the Fourth Proportional to 48,409.31, 66,798.88 and 28,251.55

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Solution

The fourth proportional to 48,409.31, 66,798.88 and 28,251.55 is: 38,983.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,409.31 : 66,798.88 = 28,251.55 : x
  2. Step 2: Convert to fraction form
    48,409.31/66,798.88 = 28,251.55/x
  3. Step 3: Cross multiply
    48,409.31x = 66,798.88 × 28,251.55
  4. Step 4: Simplify right side
    48,409.31x = 1,887,171,911.13
  5. Step 5: Solve for x
    x = 1,887,171,911.13/48,409.31
  6. Step 6: Final answer
    x = 38,983.65

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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.