Home / 22,764.13-31,402.55-18,519.86

Finding the Fourth Proportional to 22,764.13, 31,402.55 and 18,519.86

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Solution

The fourth proportional to 22,764.13, 31,402.55 and 18,519.86 is: 25,547.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,764.13 : 31,402.55 = 18,519.86 : x
  2. Step 2: Convert to fraction form
    22,764.13/31,402.55 = 18,519.86/x
  3. Step 3: Cross multiply
    22,764.13x = 31,402.55 × 18,519.86
  4. Step 4: Simplify right side
    22,764.13x = 581,570,954.45
  5. Step 5: Solve for x
    x = 581,570,954.45/22,764.13
  6. Step 6: Final answer
    x = 25,547.69

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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.