Home / 21,972.40-30,324.89-13,473

Finding the Fourth Proportional to 21,972.40, 30,324.89 and 13,473

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Solution

The fourth proportional to 21,972.40, 30,324.89 and 13,473 is: 18,594.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,972.40 : 30,324.89 = 13,473 : x
  2. Step 2: Convert to fraction form
    21,972.40/30,324.89 = 13,473/x
  3. Step 3: Cross multiply
    21,972.40x = 30,324.89 × 13,473
  4. Step 4: Simplify right side
    21,972.40x = 408,567,276.65
  5. Step 5: Solve for x
    x = 408,567,276.65/21,972.40
  6. Step 6: Final answer
    x = 18,594.57

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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.