Home / 22,065.18-30,442.95-13,686.54

Finding the Fourth Proportional to 22,065.18, 30,442.95 and 13,686.54

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Solution

The fourth proportional to 22,065.18, 30,442.95 and 13,686.54 is: 18,883.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,065.18 : 30,442.95 = 13,686.54 : x
  2. Step 2: Convert to fraction form
    22,065.18/30,442.95 = 13,686.54/x
  3. Step 3: Cross multiply
    22,065.18x = 30,442.95 × 13,686.54
  4. Step 4: Simplify right side
    22,065.18x = 416,658,652.89
  5. Step 5: Solve for x
    x = 416,658,652.89/22,065.18
  6. Step 6: Final answer
    x = 18,883.08

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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.