Home / 40,283.80-60,402.06-12,195.40

Finding the Fourth Proportional to 40,283.80, 60,402.06 and 12,195.40

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Solution

The fourth proportional to 40,283.80, 60,402.06 and 12,195.40 is: 18,285.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,283.80 : 60,402.06 = 12,195.40 : x
  2. Step 2: Convert to fraction form
    40,283.80/60,402.06 = 12,195.40/x
  3. Step 3: Cross multiply
    40,283.80x = 60,402.06 × 12,195.40
  4. Step 4: Simplify right side
    40,283.80x = 736,627,282.52
  5. Step 5: Solve for x
    x = 736,627,282.52/40,283.80
  6. Step 6: Final answer
    x = 18,285.94

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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.