Home / 37,275.95-55,919.45-12,318.64

Finding the Fourth Proportional to 37,275.95, 55,919.45 and 12,318.64

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Solution

The fourth proportional to 37,275.95, 55,919.45 and 12,318.64 is: 18,479.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,275.95 : 55,919.45 = 12,318.64 : x
  2. Step 2: Convert to fraction form
    37,275.95/55,919.45 = 12,318.64/x
  3. Step 3: Cross multiply
    37,275.95x = 55,919.45 × 12,318.64
  4. Step 4: Simplify right side
    37,275.95x = 688,851,573.55
  5. Step 5: Solve for x
    x = 688,851,573.55/37,275.95
  6. Step 6: Final answer
    x = 18,479.79

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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.