Home / 38,754.38-58,129.50-12,457.10

Finding the Fourth Proportional to 38,754.38, 58,129.50 and 12,457.10

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Solution

The fourth proportional to 38,754.38, 58,129.50 and 12,457.10 is: 18,684.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,754.38 : 58,129.50 = 12,457.10 : x
  2. Step 2: Convert to fraction form
    38,754.38/58,129.50 = 12,457.10/x
  3. Step 3: Cross multiply
    38,754.38x = 58,129.50 × 12,457.10
  4. Step 4: Simplify right side
    38,754.38x = 724,124,994.45
  5. Step 5: Solve for x
    x = 724,124,994.45/38,754.38
  6. Step 6: Final answer
    x = 18,684.98

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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.