Home / 38,159.70-57,239.28-11,864.40

Finding the Fourth Proportional to 38,159.70, 57,239.28 and 11,864.40

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Solution

The fourth proportional to 38,159.70, 57,239.28 and 11,864.40 is: 17,796.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,159.70 : 57,239.28 = 11,864.40 : x
  2. Step 2: Convert to fraction form
    38,159.70/57,239.28 = 11,864.40/x
  3. Step 3: Cross multiply
    38,159.70x = 57,239.28 × 11,864.40
  4. Step 4: Simplify right side
    38,159.70x = 679,109,713.63
  5. Step 5: Solve for x
    x = 679,109,713.63/38,159.70
  6. Step 6: Final answer
    x = 17,796.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.