Home / 34,378.24-47,445.60-20,230.80

Finding the Fourth Proportional to 34,378.24, 47,445.60 and 20,230.80

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Solution

The fourth proportional to 34,378.24, 47,445.60 and 20,230.80 is: 27,920.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,378.24 : 47,445.60 = 20,230.80 : x
  2. Step 2: Convert to fraction form
    34,378.24/47,445.60 = 20,230.80/x
  3. Step 3: Cross multiply
    34,378.24x = 47,445.60 × 20,230.80
  4. Step 4: Simplify right side
    34,378.24x = 959,862,444.48
  5. Step 5: Solve for x
    x = 959,862,444.48/34,378.24
  6. Step 6: Final answer
    x = 27,920.64

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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.