Home / 28,214.22-38,934-15,464.91

Finding the Fourth Proportional to 28,214.22, 38,934 and 15,464.91

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Solution

The fourth proportional to 28,214.22, 38,934 and 15,464.91 is: 21,340.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,214.22 : 38,934 = 15,464.91 : x
  2. Step 2: Convert to fraction form
    28,214.22/38,934 = 15,464.91/x
  3. Step 3: Cross multiply
    28,214.22x = 38,934 × 15,464.91
  4. Step 4: Simplify right side
    28,214.22x = 602,110,805.94
  5. Step 5: Solve for x
    x = 602,110,805.94/28,214.22
  6. Step 6: Final answer
    x = 21,340.69

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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.