Home / 20,005.28-30,026.74-10,151.63

Finding the Fourth Proportional to 20,005.28, 30,026.74 and 10,151.63

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Solution

The fourth proportional to 20,005.28, 30,026.74 and 10,151.63 is: 15,236.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,005.28 : 30,026.74 = 10,151.63 : x
  2. Step 2: Convert to fraction form
    20,005.28/30,026.74 = 10,151.63/x
  3. Step 3: Cross multiply
    20,005.28x = 30,026.74 × 10,151.63
  4. Step 4: Simplify right side
    20,005.28x = 304,820,204.45
  5. Step 5: Solve for x
    x = 304,820,204.45/20,005.28
  6. Step 6: Final answer
    x = 15,236.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.