Home / 18,428.88-25,432.77-10,365.08

Finding the Fourth Proportional to 18,428.88, 25,432.77 and 10,365.08

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Solution

The fourth proportional to 18,428.88, 25,432.77 and 10,365.08 is: 14,304.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,428.88 : 25,432.77 = 10,365.08 : x
  2. Step 2: Convert to fraction form
    18,428.88/25,432.77 = 10,365.08/x
  3. Step 3: Cross multiply
    18,428.88x = 25,432.77 × 10,365.08
  4. Step 4: Simplify right side
    18,428.88x = 263,612,549.07
  5. Step 5: Solve for x
    x = 263,612,549.07/18,428.88
  6. Step 6: Final answer
    x = 14,304.32

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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.