Home / 40,896.81-56,402.61-28,170.29

Finding the Fourth Proportional to 40,896.81, 56,402.61 and 28,170.29

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Solution

The fourth proportional to 40,896.81, 56,402.61 and 28,170.29 is: 38,850.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,896.81 : 56,402.61 = 28,170.29 : x
  2. Step 2: Convert to fraction form
    40,896.81/56,402.61 = 28,170.29/x
  3. Step 3: Cross multiply
    40,896.81x = 56,402.61 × 28,170.29
  4. Step 4: Simplify right side
    40,896.81x = 1,588,878,021.46
  5. Step 5: Solve for x
    x = 1,588,878,021.46/40,896.81
  6. Step 6: Final answer
    x = 38,850.90

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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.