Home / 31,528.66-47,209.55-19,031.98

Finding the Fourth Proportional to 31,528.66, 47,209.55 and 19,031.98

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Solution

The fourth proportional to 31,528.66, 47,209.55 and 19,031.98 is: 28,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,528.66 : 47,209.55 = 19,031.98 : x
  2. Step 2: Convert to fraction form
    31,528.66/47,209.55 = 19,031.98/x
  3. Step 3: Cross multiply
    31,528.66x = 47,209.55 × 19,031.98
  4. Step 4: Simplify right side
    31,528.66x = 898,491,211.41
  5. Step 5: Solve for x
    x = 898,491,211.41/31,528.66
  6. Step 6: Final answer
    x = 28,497.60

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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.