Home / 31,550.80-47,261.40-15,977.20

Finding the Fourth Proportional to 31,550.80, 47,261.40 and 15,977.20

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Solution

The fourth proportional to 31,550.80, 47,261.40 and 15,977.20 is: 23,932.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,550.80 : 47,261.40 = 15,977.20 : x
  2. Step 2: Convert to fraction form
    31,550.80/47,261.40 = 15,977.20/x
  3. Step 3: Cross multiply
    31,550.80x = 47,261.40 × 15,977.20
  4. Step 4: Simplify right side
    31,550.80x = 755,104,840.08
  5. Step 5: Solve for x
    x = 755,104,840.08/31,550.80
  6. Step 6: Final answer
    x = 23,932.99

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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.