Home / 21,214.39-31,795.45-8,726.62

Finding the Fourth Proportional to 21,214.39, 31,795.45 and 8,726.62

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Solution

The fourth proportional to 21,214.39, 31,795.45 and 8,726.62 is: 13,079.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,214.39 : 31,795.45 = 8,726.62 : x
  2. Step 2: Convert to fraction form
    21,214.39/31,795.45 = 8,726.62/x
  3. Step 3: Cross multiply
    21,214.39x = 31,795.45 × 8,726.62
  4. Step 4: Simplify right side
    21,214.39x = 277,466,809.88
  5. Step 5: Solve for x
    x = 277,466,809.88/21,214.39
  6. Step 6: Final answer
    x = 13,079.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.