Home / 31,587.27-43,592.99-18,162.88

Finding the Fourth Proportional to 31,587.27, 43,592.99 and 18,162.88

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Solution

The fourth proportional to 31,587.27, 43,592.99 and 18,162.88 is: 25,066.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,587.27 : 43,592.99 = 18,162.88 : x
  2. Step 2: Convert to fraction form
    31,587.27/43,592.99 = 18,162.88/x
  3. Step 3: Cross multiply
    31,587.27x = 43,592.99 × 18,162.88
  4. Step 4: Simplify right side
    31,587.27x = 791,774,291.62
  5. Step 5: Solve for x
    x = 791,774,291.62/31,587.27
  6. Step 6: Final answer
    x = 25,066.25

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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.