Home / 34,378.18-47,427.70-20,944.52

Finding the Fourth Proportional to 34,378.18, 47,427.70 and 20,944.52

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Solution

The fourth proportional to 34,378.18, 47,427.70 and 20,944.52 is: 28,894.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,378.18 : 47,427.70 = 20,944.52 : x
  2. Step 2: Convert to fraction form
    34,378.18/47,427.70 = 20,944.52/x
  3. Step 3: Cross multiply
    34,378.18x = 47,427.70 × 20,944.52
  4. Step 4: Simplify right side
    34,378.18x = 993,350,411.20
  5. Step 5: Solve for x
    x = 993,350,411.20/34,378.18
  6. Step 6: Final answer
    x = 28,894.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.