Home / 28,170.36-42,240.96-10,398.96

Finding the Fourth Proportional to 28,170.36, 42,240.96 and 10,398.96

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Solution

The fourth proportional to 28,170.36, 42,240.96 and 10,398.96 is: 15,593.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,170.36 : 42,240.96 = 10,398.96 : x
  2. Step 2: Convert to fraction form
    28,170.36/42,240.96 = 10,398.96/x
  3. Step 3: Cross multiply
    28,170.36x = 42,240.96 × 10,398.96
  4. Step 4: Simplify right side
    28,170.36x = 439,262,053.40
  5. Step 5: Solve for x
    x = 439,262,053.40/28,170.36
  6. Step 6: Final answer
    x = 15,593.06

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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.