Home / 27,881.61-38,477.48-15,306.63

Finding the Fourth Proportional to 27,881.61, 38,477.48 and 15,306.63

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Solution

The fourth proportional to 27,881.61, 38,477.48 and 15,306.63 is: 21,123.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,881.61 : 38,477.48 = 15,306.63 : x
  2. Step 2: Convert to fraction form
    27,881.61/38,477.48 = 15,306.63/x
  3. Step 3: Cross multiply
    27,881.61x = 38,477.48 × 15,306.63
  4. Step 4: Simplify right side
    27,881.61x = 588,960,473.16
  5. Step 5: Solve for x
    x = 588,960,473.16/27,881.61
  6. Step 6: Final answer
    x = 21,123.62

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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.