Home / 26,111.43-39,117.81-20,239.29

Finding the Fourth Proportional to 26,111.43, 39,117.81 and 20,239.29

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Solution

The fourth proportional to 26,111.43, 39,117.81 and 20,239.29 is: 30,320.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,111.43 : 39,117.81 = 20,239.29 : x
  2. Step 2: Convert to fraction form
    26,111.43/39,117.81 = 20,239.29/x
  3. Step 3: Cross multiply
    26,111.43x = 39,117.81 × 20,239.29
  4. Step 4: Simplify right side
    26,111.43x = 791,716,700.75
  5. Step 5: Solve for x
    x = 791,716,700.75/26,111.43
  6. Step 6: Final answer
    x = 30,320.69

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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.