Home / 25,101.60-34,662.24-15,686.16

Finding the Fourth Proportional to 25,101.60, 34,662.24 and 15,686.16

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Solution

The fourth proportional to 25,101.60, 34,662.24 and 15,686.16 is: 21,660.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,101.60 : 34,662.24 = 15,686.16 : x
  2. Step 2: Convert to fraction form
    25,101.60/34,662.24 = 15,686.16/x
  3. Step 3: Cross multiply
    25,101.60x = 34,662.24 × 15,686.16
  4. Step 4: Simplify right side
    25,101.60x = 543,717,442.60
  5. Step 5: Solve for x
    x = 543,717,442.60/25,101.60
  6. Step 6: Final answer
    x = 21,660.67

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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.