Home / 40,102.08-60,115.29-13,788.42

Finding the Fourth Proportional to 40,102.08, 60,115.29 and 13,788.42

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Solution

The fourth proportional to 40,102.08, 60,115.29 and 13,788.42 is: 20,669.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,102.08 : 60,115.29 = 13,788.42 : x
  2. Step 2: Convert to fraction form
    40,102.08/60,115.29 = 13,788.42/x
  3. Step 3: Cross multiply
    40,102.08x = 60,115.29 × 13,788.42
  4. Step 4: Simplify right side
    40,102.08x = 828,894,866.94
  5. Step 5: Solve for x
    x = 828,894,866.94/40,102.08
  6. Step 6: Final answer
    x = 20,669.62

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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.