Home / 31,639.01-43,666.25-18,209.93

Finding the Fourth Proportional to 31,639.01, 43,666.25 and 18,209.93

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Solution

The fourth proportional to 31,639.01, 43,666.25 and 18,209.93 is: 25,132.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,639.01 : 43,666.25 = 18,209.93 : x
  2. Step 2: Convert to fraction form
    31,639.01/43,666.25 = 18,209.93/x
  3. Step 3: Cross multiply
    31,639.01x = 43,666.25 × 18,209.93
  4. Step 4: Simplify right side
    31,639.01x = 795,159,046.48
  5. Step 5: Solve for x
    x = 795,159,046.48/31,639.01
  6. Step 6: Final answer
    x = 25,132.24

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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.