Home / 38,895.40-58,343.10-12,602.80

Finding the Fourth Proportional to 38,895.40, 58,343.10 and 12,602.80

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Solution

The fourth proportional to 38,895.40, 58,343.10 and 12,602.80 is: 18,904.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,895.40 : 58,343.10 = 12,602.80 : x
  2. Step 2: Convert to fraction form
    38,895.40/58,343.10 = 12,602.80/x
  3. Step 3: Cross multiply
    38,895.40x = 58,343.10 × 12,602.80
  4. Step 4: Simplify right side
    38,895.40x = 735,286,420.68
  5. Step 5: Solve for x
    x = 735,286,420.68/38,895.40
  6. Step 6: Final answer
    x = 18,904.20

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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.