Home / 29,125.10-40,199.28-20,618.39

Finding the Fourth Proportional to 29,125.10, 40,199.28 and 20,618.39

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Solution

The fourth proportional to 29,125.10, 40,199.28 and 20,618.39 is: 28,458.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,125.10 : 40,199.28 = 20,618.39 : x
  2. Step 2: Convert to fraction form
    29,125.10/40,199.28 = 20,618.39/x
  3. Step 3: Cross multiply
    29,125.10x = 40,199.28 × 20,618.39
  4. Step 4: Simplify right side
    29,125.10x = 828,844,231.76
  5. Step 5: Solve for x
    x = 828,844,231.76/29,125.10
  6. Step 6: Final answer
    x = 28,458.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.