Home / 40,385.40-60,586.20-12,307.20

Finding the Fourth Proportional to 40,385.40, 60,586.20 and 12,307.20

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Solution

The fourth proportional to 40,385.40, 60,586.20 and 12,307.20 is: 18,463.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,385.40 : 60,586.20 = 12,307.20 : x
  2. Step 2: Convert to fraction form
    40,385.40/60,586.20 = 12,307.20/x
  3. Step 3: Cross multiply
    40,385.40x = 60,586.20 × 12,307.20
  4. Step 4: Simplify right side
    40,385.40x = 745,646,480.64
  5. Step 5: Solve for x
    x = 745,646,480.64/40,385.40
  6. Step 6: Final answer
    x = 18,463.27

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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.