Home / 27,898.46-38,500.15-15,323.21

Finding the Fourth Proportional to 27,898.46, 38,500.15 and 15,323.21

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Solution

The fourth proportional to 27,898.46, 38,500.15 and 15,323.21 is: 21,146.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,898.46 : 38,500.15 = 15,323.21 : x
  2. Step 2: Convert to fraction form
    27,898.46/38,500.15 = 15,323.21/x
  3. Step 3: Cross multiply
    27,898.46x = 38,500.15 × 15,323.21
  4. Step 4: Simplify right side
    27,898.46x = 589,945,883.48
  5. Step 5: Solve for x
    x = 589,945,883.48/27,898.46
  6. Step 6: Final answer
    x = 21,146.18

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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.