Home / 35,128.20-52,686.78-12,952.20

Finding the Fourth Proportional to 35,128.20, 52,686.78 and 12,952.20

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Solution

The fourth proportional to 35,128.20, 52,686.78 and 12,952.20 is: 19,426.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,128.20 : 52,686.78 = 12,952.20 : x
  2. Step 2: Convert to fraction form
    35,128.20/52,686.78 = 12,952.20/x
  3. Step 3: Cross multiply
    35,128.20x = 52,686.78 × 12,952.20
  4. Step 4: Simplify right side
    35,128.20x = 682,409,711.92
  5. Step 5: Solve for x
    x = 682,409,711.92/35,128.20
  6. Step 6: Final answer
    x = 19,426.26

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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.