Home / 28,120.52-38,807.10-15,546.08

Finding the Fourth Proportional to 28,120.52, 38,807.10 and 15,546.08

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Solution

The fourth proportional to 28,120.52, 38,807.10 and 15,546.08 is: 21,454.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,120.52 : 38,807.10 = 15,546.08 : x
  2. Step 2: Convert to fraction form
    28,120.52/38,807.10 = 15,546.08/x
  3. Step 3: Cross multiply
    28,120.52x = 38,807.10 × 15,546.08
  4. Step 4: Simplify right side
    28,120.52x = 603,298,281.17
  5. Step 5: Solve for x
    x = 603,298,281.17/28,120.52
  6. Step 6: Final answer
    x = 21,454.02

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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.