Home / 20,213.75-27,895.02-13,152.17

Finding the Fourth Proportional to 20,213.75, 27,895.02 and 13,152.17

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Solution

The fourth proportional to 20,213.75, 27,895.02 and 13,152.17 is: 18,150.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213.75 : 27,895.02 = 13,152.17 : x
  2. Step 2: Convert to fraction form
    20,213.75/27,895.02 = 13,152.17/x
  3. Step 3: Cross multiply
    20,213.75x = 27,895.02 × 13,152.17
  4. Step 4: Simplify right side
    20,213.75x = 366,880,045.19
  5. Step 5: Solve for x
    x = 366,880,045.19/20,213.75
  6. Step 6: Final answer
    x = 18,150.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.