Home / 39,934.01-54,979.36-31,421.12

Finding the Fourth Proportional to 39,934.01, 54,979.36 and 31,421.12

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Solution

The fourth proportional to 39,934.01, 54,979.36 and 31,421.12 is: 43,259.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,934.01 : 54,979.36 = 31,421.12 : x
  2. Step 2: Convert to fraction form
    39,934.01/54,979.36 = 31,421.12/x
  3. Step 3: Cross multiply
    39,934.01x = 54,979.36 × 31,421.12
  4. Step 4: Simplify right side
    39,934.01x = 1,727,512,714.63
  5. Step 5: Solve for x
    x = 1,727,512,714.63/39,934.01
  6. Step 6: Final answer
    x = 43,259.18

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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.