Home / 39,700.59-59,556.07-20,981.35

Finding the Fourth Proportional to 39,700.59, 59,556.07 and 20,981.35

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Solution

The fourth proportional to 39,700.59, 59,556.07 and 20,981.35 is: 31,474.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,700.59 : 59,556.07 = 20,981.35 : x
  2. Step 2: Convert to fraction form
    39,700.59/59,556.07 = 20,981.35/x
  3. Step 3: Cross multiply
    39,700.59x = 59,556.07 × 20,981.35
  4. Step 4: Simplify right side
    39,700.59x = 1,249,566,644.39
  5. Step 5: Solve for x
    x = 1,249,566,644.39/39,700.59
  6. Step 6: Final answer
    x = 31,474.77

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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.