Home / 31,325.47-47,011.56-12,605.67

Finding the Fourth Proportional to 31,325.47, 47,011.56 and 12,605.67

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Solution

The fourth proportional to 31,325.47, 47,011.56 and 12,605.67 is: 18,917.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,325.47 : 47,011.56 = 12,605.67 : x
  2. Step 2: Convert to fraction form
    31,325.47/47,011.56 = 12,605.67/x
  3. Step 3: Cross multiply
    31,325.47x = 47,011.56 × 12,605.67
  4. Step 4: Simplify right side
    31,325.47x = 592,612,211.55
  5. Step 5: Solve for x
    x = 592,612,211.55/31,325.47
  6. Step 6: Final answer
    x = 18,917.90

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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.