Home / 31,720.16-43,793.99-19,801.01

Finding the Fourth Proportional to 31,720.16, 43,793.99 and 19,801.01

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Solution

The fourth proportional to 31,720.16, 43,793.99 and 19,801.01 is: 27,337.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,720.16 : 43,793.99 = 19,801.01 : x
  2. Step 2: Convert to fraction form
    31,720.16/43,793.99 = 19,801.01/x
  3. Step 3: Cross multiply
    31,720.16x = 43,793.99 × 19,801.01
  4. Step 4: Simplify right side
    31,720.16x = 867,165,233.93
  5. Step 5: Solve for x
    x = 867,165,233.93/31,720.16
  6. Step 6: Final answer
    x = 27,337.98

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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.