Home / 19,934.65-27,510-10,982.47

Finding the Fourth Proportional to 19,934.65, 27,510 and 10,982.47

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Solution

The fourth proportional to 19,934.65, 27,510 and 10,982.47 is: 15,155.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,934.65 : 27,510 = 10,982.47 : x
  2. Step 2: Convert to fraction form
    19,934.65/27,510 = 10,982.47/x
  3. Step 3: Cross multiply
    19,934.65x = 27,510 × 10,982.47
  4. Step 4: Simplify right side
    19,934.65x = 302,127,749.70
  5. Step 5: Solve for x
    x = 302,127,749.70/19,934.65
  6. Step 6: Final answer
    x = 15,155.91

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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.