Home / 27,882.64-38,477.56-15,307.30

Finding the Fourth Proportional to 27,882.64, 38,477.56 and 15,307.30

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Solution

The fourth proportional to 27,882.64, 38,477.56 and 15,307.30 is: 21,123.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,882.64 : 38,477.56 = 15,307.30 : x
  2. Step 2: Convert to fraction form
    27,882.64/38,477.56 = 15,307.30/x
  3. Step 3: Cross multiply
    27,882.64x = 38,477.56 × 15,307.30
  4. Step 4: Simplify right side
    27,882.64x = 588,987,285.26
  5. Step 5: Solve for x
    x = 588,987,285.26/27,882.64
  6. Step 6: Final answer
    x = 21,123.80

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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.