Home / 19,912.65-27,470.25-12,841.35

Finding the Fourth Proportional to 19,912.65, 27,470.25 and 12,841.35

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Solution

The fourth proportional to 19,912.65, 27,470.25 and 12,841.35 is: 17,715.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,912.65 : 27,470.25 = 12,841.35 : x
  2. Step 2: Convert to fraction form
    19,912.65/27,470.25 = 12,841.35/x
  3. Step 3: Cross multiply
    19,912.65x = 27,470.25 × 12,841.35
  4. Step 4: Simplify right side
    19,912.65x = 352,754,957.49
  5. Step 5: Solve for x
    x = 352,754,957.49/19,912.65
  6. Step 6: Final answer
    x = 17,715.12

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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.