Home / 40,345.40-60,518.10-20,617.40

Finding the Fourth Proportional to 40,345.40, 60,518.10 and 20,617.40

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Solution

The fourth proportional to 40,345.40, 60,518.10 and 20,617.40 is: 30,926.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,345.40 : 60,518.10 = 20,617.40 : x
  2. Step 2: Convert to fraction form
    40,345.40/60,518.10 = 20,617.40/x
  3. Step 3: Cross multiply
    40,345.40x = 60,518.10 × 20,617.40
  4. Step 4: Simplify right side
    40,345.40x = 1,247,725,874.94
  5. Step 5: Solve for x
    x = 1,247,725,874.94/40,345.40
  6. Step 6: Final answer
    x = 30,926.10

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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.