Home / 20,374.70-28,123.06-13,302.18

Finding the Fourth Proportional to 20,374.70, 28,123.06 and 13,302.18

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Solution

The fourth proportional to 20,374.70, 28,123.06 and 13,302.18 is: 18,360.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,374.70 : 28,123.06 = 13,302.18 : x
  2. Step 2: Convert to fraction form
    20,374.70/28,123.06 = 13,302.18/x
  3. Step 3: Cross multiply
    20,374.70x = 28,123.06 × 13,302.18
  4. Step 4: Simplify right side
    20,374.70x = 374,098,006.27
  5. Step 5: Solve for x
    x = 374,098,006.27/20,374.70
  6. Step 6: Final answer
    x = 18,360.91

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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.