Home / 31,352.55-47,030.34-12,630.06

Finding the Fourth Proportional to 31,352.55, 47,030.34 and 12,630.06

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Solution

The fourth proportional to 31,352.55, 47,030.34 and 12,630.06 is: 18,945.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,352.55 : 47,030.34 = 12,630.06 : x
  2. Step 2: Convert to fraction form
    31,352.55/47,030.34 = 12,630.06/x
  3. Step 3: Cross multiply
    31,352.55x = 47,030.34 × 12,630.06
  4. Step 4: Simplify right side
    31,352.55x = 593,996,016.02
  5. Step 5: Solve for x
    x = 593,996,016.02/31,352.55
  6. Step 6: Final answer
    x = 18,945.70

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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.