Home / 21,166.84-31,722.76-15,860.17

Finding the Fourth Proportional to 21,166.84, 31,722.76 and 15,860.17

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Solution

The fourth proportional to 21,166.84, 31,722.76 and 15,860.17 is: 23,769.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,166.84 : 31,722.76 = 15,860.17 : x
  2. Step 2: Convert to fraction form
    21,166.84/31,722.76 = 15,860.17/x
  3. Step 3: Cross multiply
    21,166.84x = 31,722.76 × 15,860.17
  4. Step 4: Simplify right side
    21,166.84x = 503,128,366.47
  5. Step 5: Solve for x
    x = 503,128,366.47/21,166.84
  6. Step 6: Final answer
    x = 23,769.65

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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.