Home / 40,220.57-60,339.52-12,138.27

Finding the Fourth Proportional to 40,220.57, 60,339.52 and 12,138.27

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Solution

The fourth proportional to 40,220.57, 60,339.52 and 12,138.27 is: 18,210.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,220.57 : 60,339.52 = 12,138.27 : x
  2. Step 2: Convert to fraction form
    40,220.57/60,339.52 = 12,138.27/x
  3. Step 3: Cross multiply
    40,220.57x = 60,339.52 × 12,138.27
  4. Step 4: Simplify right side
    40,220.57x = 732,417,355.08
  5. Step 5: Solve for x
    x = 732,417,355.08/40,220.57
  6. Step 6: Final answer
    x = 18,210.02

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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.