Home / 27,882.51-38,477.39-15,307.17

Finding the Fourth Proportional to 27,882.51, 38,477.39 and 15,307.17

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Solution

The fourth proportional to 27,882.51, 38,477.39 and 15,307.17 is: 21,123.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,882.51 : 38,477.39 = 15,307.17 : x
  2. Step 2: Convert to fraction form
    27,882.51/38,477.39 = 15,307.17/x
  3. Step 3: Cross multiply
    27,882.51x = 38,477.39 × 15,307.17
  4. Step 4: Simplify right side
    27,882.51x = 588,979,873.35
  5. Step 5: Solve for x
    x = 588,979,873.35/27,882.51
  6. Step 6: Final answer
    x = 21,123.63

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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.