Home / 15,025.51-22,440.24-12,780.42

Finding the Fourth Proportional to 15,025.51, 22,440.24 and 12,780.42

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Solution

The fourth proportional to 15,025.51, 22,440.24 and 12,780.42 is: 19,087.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,025.51 : 22,440.24 = 12,780.42 : x
  2. Step 2: Convert to fraction form
    15,025.51/22,440.24 = 12,780.42/x
  3. Step 3: Cross multiply
    15,025.51x = 22,440.24 × 12,780.42
  4. Step 4: Simplify right side
    15,025.51x = 286,795,516.00
  5. Step 5: Solve for x
    x = 286,795,516.00/15,025.51
  6. Step 6: Final answer
    x = 19,087.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.