Home / 45,339.17-68,031.05-20,396.84

Finding the Fourth Proportional to 45,339.17, 68,031.05 and 20,396.84

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Solution

The fourth proportional to 45,339.17, 68,031.05 and 20,396.84 is: 30,605.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,339.17 : 68,031.05 = 20,396.84 : x
  2. Step 2: Convert to fraction form
    45,339.17/68,031.05 = 20,396.84/x
  3. Step 3: Cross multiply
    45,339.17x = 68,031.05 × 20,396.84
  4. Step 4: Simplify right side
    45,339.17x = 1,387,617,999.74
  5. Step 5: Solve for x
    x = 1,387,617,999.74/45,339.17
  6. Step 6: Final answer
    x = 30,605.28

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1.5x scale

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.