Home / 27,701.14-38,223.12-15,764.68

Finding the Fourth Proportional to 27,701.14, 38,223.12 and 15,764.68

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Solution

The fourth proportional to 27,701.14, 38,223.12 and 15,764.68 is: 21,752.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,701.14 : 38,223.12 = 15,764.68 : x
  2. Step 2: Convert to fraction form
    27,701.14/38,223.12 = 15,764.68/x
  3. Step 3: Cross multiply
    27,701.14x = 38,223.12 × 15,764.68
  4. Step 4: Simplify right side
    27,701.14x = 602,574,985.46
  5. Step 5: Solve for x
    x = 602,574,985.46/27,701.14
  6. Step 6: Final answer
    x = 21,752.72

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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.