Home / 38,861.40-58,248.90-21,343.80

Finding the Fourth Proportional to 38,861.40, 58,248.90 and 21,343.80

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Solution

The fourth proportional to 38,861.40, 58,248.90 and 21,343.80 is: 31,991.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,861.40 : 58,248.90 = 21,343.80 : x
  2. Step 2: Convert to fraction form
    38,861.40/58,248.90 = 21,343.80/x
  3. Step 3: Cross multiply
    38,861.40x = 58,248.90 × 21,343.80
  4. Step 4: Simplify right side
    38,861.40x = 1,243,252,871.82
  5. Step 5: Solve for x
    x = 1,243,252,871.82/38,861.40
  6. Step 6: Final answer
    x = 31,991.97

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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.