Home / 40,323.24-60,478.38-12,621.24

Finding the Fourth Proportional to 40,323.24, 60,478.38 and 12,621.24

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Solution

The fourth proportional to 40,323.24, 60,478.38 and 12,621.24 is: 18,929.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,323.24 : 60,478.38 = 12,621.24 : x
  2. Step 2: Convert to fraction form
    40,323.24/60,478.38 = 12,621.24/x
  3. Step 3: Cross multiply
    40,323.24x = 60,478.38 × 12,621.24
  4. Step 4: Simplify right side
    40,323.24x = 763,312,148.79
  5. Step 5: Solve for x
    x = 763,312,148.79/40,323.24
  6. Step 6: Final answer
    x = 18,929.83

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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.