Home / 34,395.90-51,585.20-13,328.70

Finding the Fourth Proportional to 34,395.90, 51,585.20 and 13,328.70

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Solution

The fourth proportional to 34,395.90, 51,585.20 and 13,328.70 is: 19,989.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,395.90 : 51,585.20 = 13,328.70 : x
  2. Step 2: Convert to fraction form
    34,395.90/51,585.20 = 13,328.70/x
  3. Step 3: Cross multiply
    34,395.90x = 51,585.20 × 13,328.70
  4. Step 4: Simplify right side
    34,395.90x = 687,563,655.24
  5. Step 5: Solve for x
    x = 687,563,655.24/34,395.90
  6. Step 6: Final answer
    x = 19,989.70

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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.