Home / 27,849.48-38,429.76-15,912.76

Finding the Fourth Proportional to 27,849.48, 38,429.76 and 15,912.76

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Solution

The fourth proportional to 27,849.48, 38,429.76 and 15,912.76 is: 21,958.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,849.48 : 38,429.76 = 15,912.76 : x
  2. Step 2: Convert to fraction form
    27,849.48/38,429.76 = 15,912.76/x
  3. Step 3: Cross multiply
    27,849.48x = 38,429.76 × 15,912.76
  4. Step 4: Simplify right side
    27,849.48x = 611,523,547.74
  5. Step 5: Solve for x
    x = 611,523,547.74/27,849.48
  6. Step 6: Final answer
    x = 21,958.17

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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.