Home / 39,425.96-54,409.12-21,521.93

Finding the Fourth Proportional to 39,425.96, 54,409.12 and 21,521.93

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Solution

The fourth proportional to 39,425.96, 54,409.12 and 21,521.93 is: 29,700.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,425.96 : 54,409.12 = 21,521.93 : x
  2. Step 2: Convert to fraction form
    39,425.96/54,409.12 = 21,521.93/x
  3. Step 3: Cross multiply
    39,425.96x = 54,409.12 × 21,521.93
  4. Step 4: Simplify right side
    39,425.96x = 1,170,988,946.15
  5. Step 5: Solve for x
    x = 1,170,988,946.15/39,425.96
  6. Step 6: Final answer
    x = 29,700.96

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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.