Home / 31,807.80-47,719.19-9,621.36

Finding the Fourth Proportional to 31,807.80, 47,719.19 and 9,621.36

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Solution

The fourth proportional to 31,807.80, 47,719.19 and 9,621.36 is: 14,434.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,807.80 : 47,719.19 = 9,621.36 : x
  2. Step 2: Convert to fraction form
    31,807.80/47,719.19 = 9,621.36/x
  3. Step 3: Cross multiply
    31,807.80x = 47,719.19 × 9,621.36
  4. Step 4: Simplify right side
    31,807.80x = 459,123,529.95
  5. Step 5: Solve for x
    x = 459,123,529.95/31,807.80
  6. Step 6: Final answer
    x = 14,434.31

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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.