Home / 18,282.36-25,210.80-15,638.52

Finding the Fourth Proportional to 18,282.36, 25,210.80 and 15,638.52

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Solution

The fourth proportional to 18,282.36, 25,210.80 and 15,638.52 is: 21,565.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,282.36 : 25,210.80 = 15,638.52 : x
  2. Step 2: Convert to fraction form
    18,282.36/25,210.80 = 15,638.52/x
  3. Step 3: Cross multiply
    18,282.36x = 25,210.80 × 15,638.52
  4. Step 4: Simplify right side
    18,282.36x = 394,259,600.02
  5. Step 5: Solve for x
    x = 394,259,600.02/18,282.36
  6. Step 6: Final answer
    x = 21,565.03

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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.