Home / 21,473.26-29,618.10-20,750.74

Finding the Fourth Proportional to 21,473.26, 29,618.10 and 20,750.74

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Solution

The fourth proportional to 21,473.26, 29,618.10 and 20,750.74 is: 28,621.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,473.26 : 29,618.10 = 20,750.74 : x
  2. Step 2: Convert to fraction form
    21,473.26/29,618.10 = 20,750.74/x
  3. Step 3: Cross multiply
    21,473.26x = 29,618.10 × 20,750.74
  4. Step 4: Simplify right side
    21,473.26x = 614,597,492.39
  5. Step 5: Solve for x
    x = 614,597,492.39/21,473.26
  6. Step 6: Final answer
    x = 28,621.53

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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.