Home / 30,257.68-41,726.28-20,186.53

Finding the Fourth Proportional to 30,257.68, 41,726.28 and 20,186.53

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Solution

The fourth proportional to 30,257.68, 41,726.28 and 20,186.53 is: 27,837.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,257.68 : 41,726.28 = 20,186.53 : x
  2. Step 2: Convert to fraction form
    30,257.68/41,726.28 = 20,186.53/x
  3. Step 3: Cross multiply
    30,257.68x = 41,726.28 × 20,186.53
  4. Step 4: Simplify right side
    30,257.68x = 842,308,803.01
  5. Step 5: Solve for x
    x = 842,308,803.01/30,257.68
  6. Step 6: Final answer
    x = 27,837.85

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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.