Home / 39,207.76-54,107.51-21,303.93

Finding the Fourth Proportional to 39,207.76, 54,107.51 and 21,303.93

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Solution

The fourth proportional to 39,207.76, 54,107.51 and 21,303.93 is: 29,399.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,207.76 : 54,107.51 = 21,303.93 : x
  2. Step 2: Convert to fraction form
    39,207.76/54,107.51 = 21,303.93/x
  3. Step 3: Cross multiply
    39,207.76x = 54,107.51 × 21,303.93
  4. Step 4: Simplify right side
    39,207.76x = 1,152,702,517.38
  5. Step 5: Solve for x
    x = 1,152,702,517.38/39,207.76
  6. Step 6: Final answer
    x = 29,399.85

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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.