Home / 21,775.13-30,050.28-12,344.30

Finding the Fourth Proportional to 21,775.13, 30,050.28 and 12,344.30

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Solution

The fourth proportional to 21,775.13, 30,050.28 and 12,344.30 is: 17,035.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,775.13 : 30,050.28 = 12,344.30 : x
  2. Step 2: Convert to fraction form
    21,775.13/30,050.28 = 12,344.30/x
  3. Step 3: Cross multiply
    21,775.13x = 30,050.28 × 12,344.30
  4. Step 4: Simplify right side
    21,775.13x = 370,949,521.15
  5. Step 5: Solve for x
    x = 370,949,521.15/21,775.13
  6. Step 6: Final answer
    x = 17,035.47

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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.