Home / 27,011.38-37,279.08-15,678.46

Finding the Fourth Proportional to 27,011.38, 37,279.08 and 15,678.46

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Solution

The fourth proportional to 27,011.38, 37,279.08 and 15,678.46 is: 21,638.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,011.38 : 37,279.08 = 15,678.46 : x
  2. Step 2: Convert to fraction form
    27,011.38/37,279.08 = 15,678.46/x
  3. Step 3: Cross multiply
    27,011.38x = 37,279.08 × 15,678.46
  4. Step 4: Simplify right side
    27,011.38x = 584,478,564.62
  5. Step 5: Solve for x
    x = 584,478,564.62/27,011.38
  6. Step 6: Final answer
    x = 21,638.23

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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.