Home / 39,250.82-54,165.86-21,345.77

Finding the Fourth Proportional to 39,250.82, 54,165.86 and 21,345.77

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Solution

The fourth proportional to 39,250.82, 54,165.86 and 21,345.77 is: 29,457.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,250.82 : 54,165.86 = 21,345.77 : x
  2. Step 2: Convert to fraction form
    39,250.82/54,165.86 = 21,345.77/x
  3. Step 3: Cross multiply
    39,250.82x = 54,165.86 × 21,345.77
  4. Step 4: Simplify right side
    39,250.82x = 1,156,211,882.68
  5. Step 5: Solve for x
    x = 1,156,211,882.68/39,250.82
  6. Step 6: Final answer
    x = 29,457.02

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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.