Home / 40,964.04-61,445.64-18,771.12

Finding the Fourth Proportional to 40,964.04, 61,445.64 and 18,771.12

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Solution

The fourth proportional to 40,964.04, 61,445.64 and 18,771.12 is: 28,156.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,964.04 : 61,445.64 = 18,771.12 : x
  2. Step 2: Convert to fraction form
    40,964.04/61,445.64 = 18,771.12/x
  3. Step 3: Cross multiply
    40,964.04x = 61,445.64 × 18,771.12
  4. Step 4: Simplify right side
    40,964.04x = 1,153,403,481.92
  5. Step 5: Solve for x
    x = 1,153,403,481.92/40,964.04
  6. Step 6: Final answer
    x = 28,156.49

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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.