Home / 22,625.47-31,215.20-13,065.08

Finding the Fourth Proportional to 22,625.47, 31,215.20 and 13,065.08

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Solution

The fourth proportional to 22,625.47, 31,215.20 and 13,065.08 is: 18,025.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,625.47 : 31,215.20 = 13,065.08 : x
  2. Step 2: Convert to fraction form
    22,625.47/31,215.20 = 13,065.08/x
  3. Step 3: Cross multiply
    22,625.47x = 31,215.20 × 13,065.08
  4. Step 4: Simplify right side
    22,625.47x = 407,829,019.89
  5. Step 5: Solve for x
    x = 407,829,019.89/22,625.47
  6. Step 6: Final answer
    x = 18,025.22

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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.