Home / 27,965.87-38,575.98-17,890.79

Finding the Fourth Proportional to 27,965.87, 38,575.98 and 17,890.79

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Solution

The fourth proportional to 27,965.87, 38,575.98 and 17,890.79 is: 24,678.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,965.87 : 38,575.98 = 17,890.79 : x
  2. Step 2: Convert to fraction form
    27,965.87/38,575.98 = 17,890.79/x
  3. Step 3: Cross multiply
    27,965.87x = 38,575.98 × 17,890.79
  4. Step 4: Simplify right side
    27,965.87x = 690,154,564.34
  5. Step 5: Solve for x
    x = 690,154,564.34/27,965.87
  6. Step 6: Final answer
    x = 24,678.46

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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.