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Finding the Fourth Proportional to 40,570.64, 60,854.64 and 18,384.08

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Solution

The fourth proportional to 40,570.64, 60,854.64 and 18,384.08 is: 27,575.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,570.64 : 60,854.64 = 18,384.08 : x
  2. Step 2: Convert to fraction form
    40,570.64/60,854.64 = 18,384.08/x
  3. Step 3: Cross multiply
    40,570.64x = 60,854.64 × 18,384.08
  4. Step 4: Simplify right side
    40,570.64x = 1,118,756,570.13
  5. Step 5: Solve for x
    x = 1,118,756,570.13/40,570.64
  6. Step 6: Final answer
    x = 27,575.52

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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.