Home / 28,077.60-38,747.52-15,502.08

Finding the Fourth Proportional to 28,077.60, 38,747.52 and 15,502.08

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Solution

The fourth proportional to 28,077.60, 38,747.52 and 15,502.08 is: 21,393.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,077.60 : 38,747.52 = 15,502.08 : x
  2. Step 2: Convert to fraction form
    28,077.60/38,747.52 = 15,502.08/x
  3. Step 3: Cross multiply
    28,077.60x = 38,747.52 × 15,502.08
  4. Step 4: Simplify right side
    28,077.60x = 600,667,154.84
  5. Step 5: Solve for x
    x = 600,667,154.84/28,077.60
  6. Step 6: Final answer
    x = 21,393.11

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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.