Home / 34,865.88-48,127.26-20,718.64

Finding the Fourth Proportional to 34,865.88, 48,127.26 and 20,718.64

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Solution

The fourth proportional to 34,865.88, 48,127.26 and 20,718.64 is: 28,599.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,865.88 : 48,127.26 = 20,718.64 : x
  2. Step 2: Convert to fraction form
    34,865.88/48,127.26 = 20,718.64/x
  3. Step 3: Cross multiply
    34,865.88x = 48,127.26 × 20,718.64
  4. Step 4: Simplify right side
    34,865.88x = 997,131,374.13
  5. Step 5: Solve for x
    x = 997,131,374.13/34,865.88
  6. Step 6: Final answer
    x = 28,599.06

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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.