Home / 27,807.52-38,374.90-15,231.48

Finding the Fourth Proportional to 27,807.52, 38,374.90 and 15,231.48

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Solution

The fourth proportional to 27,807.52, 38,374.90 and 15,231.48 is: 21,019.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,807.52 : 38,374.90 = 15,231.48 : x
  2. Step 2: Convert to fraction form
    27,807.52/38,374.90 = 15,231.48/x
  3. Step 3: Cross multiply
    27,807.52x = 38,374.90 × 15,231.48
  4. Step 4: Simplify right side
    27,807.52x = 584,506,521.85
  5. Step 5: Solve for x
    x = 584,506,521.85/27,807.52
  6. Step 6: Final answer
    x = 21,019.73

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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.