Home / 39,645.36-54,710.67-21,740.24

Finding the Fourth Proportional to 39,645.36, 54,710.67 and 21,740.24

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Solution

The fourth proportional to 39,645.36, 54,710.67 and 21,740.24 is: 30,001.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,645.36 : 54,710.67 = 21,740.24 : x
  2. Step 2: Convert to fraction form
    39,645.36/54,710.67 = 21,740.24/x
  3. Step 3: Cross multiply
    39,645.36x = 54,710.67 × 21,740.24
  4. Step 4: Simplify right side
    39,645.36x = 1,189,423,096.36
  5. Step 5: Solve for x
    x = 1,189,423,096.36/39,645.36
  6. Step 6: Final answer
    x = 30,001.57

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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.