Home / 25,320.80-37,981.20-6,852.80

Finding the Fourth Proportional to 25,320.80, 37,981.20 and 6,852.80

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Solution

The fourth proportional to 25,320.80, 37,981.20 and 6,852.80 is: 10,279.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,320.80 : 37,981.20 = 6,852.80 : x
  2. Step 2: Convert to fraction form
    25,320.80/37,981.20 = 6,852.80/x
  3. Step 3: Cross multiply
    25,320.80x = 37,981.20 × 6,852.80
  4. Step 4: Simplify right side
    25,320.80x = 260,277,567.36
  5. Step 5: Solve for x
    x = 260,277,567.36/25,320.80
  6. Step 6: Final answer
    x = 10,279.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.