Home / 25,124.80-34,678.40-14,520.80

Finding the Fourth Proportional to 25,124.80, 34,678.40 and 14,520.80

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Solution

The fourth proportional to 25,124.80, 34,678.40 and 14,520.80 is: 20,042.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,124.80 : 34,678.40 = 14,520.80 : x
  2. Step 2: Convert to fraction form
    25,124.80/34,678.40 = 14,520.80/x
  3. Step 3: Cross multiply
    25,124.80x = 34,678.40 × 14,520.80
  4. Step 4: Simplify right side
    25,124.80x = 503,558,110.72
  5. Step 5: Solve for x
    x = 503,558,110.72/25,124.80
  6. Step 6: Final answer
    x = 20,042.27

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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.