Home / 25,320.40-34,942.12-14,142.40

Finding the Fourth Proportional to 25,320.40, 34,942.12 and 14,142.40

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Solution

The fourth proportional to 25,320.40, 34,942.12 and 14,142.40 is: 19,516.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,320.40 : 34,942.12 = 14,142.40 : x
  2. Step 2: Convert to fraction form
    25,320.40/34,942.12 = 14,142.40/x
  3. Step 3: Cross multiply
    25,320.40x = 34,942.12 × 14,142.40
  4. Step 4: Simplify right side
    25,320.40x = 494,165,437.89
  5. Step 5: Solve for x
    x = 494,165,437.89/25,320.40
  6. Step 6: Final answer
    x = 19,516.49

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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.