Home / 39,701.09-59,556.81-20,981.85

Finding the Fourth Proportional to 39,701.09, 59,556.81 and 20,981.85

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Solution

The fourth proportional to 39,701.09, 59,556.81 and 20,981.85 is: 31,475.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,701.09 : 59,556.81 = 20,981.85 : x
  2. Step 2: Convert to fraction form
    39,701.09/59,556.81 = 20,981.85/x
  3. Step 3: Cross multiply
    39,701.09x = 59,556.81 × 20,981.85
  4. Step 4: Simplify right side
    39,701.09x = 1,249,612,053.90
  5. Step 5: Solve for x
    x = 1,249,612,053.90/39,701.09
  6. Step 6: Final answer
    x = 31,475.51

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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.