Home / 45,315.74-67,946.88-13,716.20

Finding the Fourth Proportional to 45,315.74, 67,946.88 and 13,716.20

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Solution

The fourth proportional to 45,315.74, 67,946.88 and 13,716.20 is: 20,566.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,315.74 : 67,946.88 = 13,716.20 : x
  2. Step 2: Convert to fraction form
    45,315.74/67,946.88 = 13,716.20/x
  3. Step 3: Cross multiply
    45,315.74x = 67,946.88 × 13,716.20
  4. Step 4: Simplify right side
    45,315.74x = 931,972,995.46
  5. Step 5: Solve for x
    x = 931,972,995.46/45,315.74
  6. Step 6: Final answer
    x = 20,566.21

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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.