Home / 31,560.80-47,341.20-23,687.60

Finding the Fourth Proportional to 31,560.80, 47,341.20 and 23,687.60

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Solution

The fourth proportional to 31,560.80, 47,341.20 and 23,687.60 is: 35,531.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,560.80 : 47,341.20 = 23,687.60 : x
  2. Step 2: Convert to fraction form
    31,560.80/47,341.20 = 23,687.60/x
  3. Step 3: Cross multiply
    31,560.80x = 47,341.20 × 23,687.60
  4. Step 4: Simplify right side
    31,560.80x = 1,121,399,409.12
  5. Step 5: Solve for x
    x = 1,121,399,409.12/31,560.80
  6. Step 6: Final answer
    x = 35,531.40

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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.