Home / 35,145.91-48,496.57-20,995.75

Finding the Fourth Proportional to 35,145.91, 48,496.57 and 20,995.75

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Solution

The fourth proportional to 35,145.91, 48,496.57 and 20,995.75 is: 28,971.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,145.91 : 48,496.57 = 20,995.75 : x
  2. Step 2: Convert to fraction form
    35,145.91/48,496.57 = 20,995.75/x
  3. Step 3: Cross multiply
    35,145.91x = 48,496.57 × 20,995.75
  4. Step 4: Simplify right side
    35,145.91x = 1,018,221,859.58
  5. Step 5: Solve for x
    x = 1,018,221,859.58/35,145.91
  6. Step 6: Final answer
    x = 28,971.28

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Double scale
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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.