Home / 38,777.21-58,128.84-12,463.46

Finding the Fourth Proportional to 38,777.21, 58,128.84 and 12,463.46

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Solution

The fourth proportional to 38,777.21, 58,128.84 and 12,463.46 is: 18,683.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,777.21 : 58,128.84 = 12,463.46 : x
  2. Step 2: Convert to fraction form
    38,777.21/58,128.84 = 12,463.46/x
  3. Step 3: Cross multiply
    38,777.21x = 58,128.84 × 12,463.46
  4. Step 4: Simplify right side
    38,777.21x = 724,486,472.19
  5. Step 5: Solve for x
    x = 724,486,472.19/38,777.21
  6. Step 6: Final answer
    x = 18,683.31

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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.