Home / 18,342.23-25,275.98-13,022.15

Finding the Fourth Proportional to 18,342.23, 25,275.98 and 13,022.15

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Solution

The fourth proportional to 18,342.23, 25,275.98 and 13,022.15 is: 17,944.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,342.23 : 25,275.98 = 13,022.15 : x
  2. Step 2: Convert to fraction form
    18,342.23/25,275.98 = 13,022.15/x
  3. Step 3: Cross multiply
    18,342.23x = 25,275.98 × 13,022.15
  4. Step 4: Simplify right side
    18,342.23x = 329,147,509.13
  5. Step 5: Solve for x
    x = 329,147,509.13/18,342.23
  6. Step 6: Final answer
    x = 17,944.80

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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.