Home / 39,420.88-59,121.08-11,711.44

Finding the Fourth Proportional to 39,420.88, 59,121.08 and 11,711.44

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Solution

The fourth proportional to 39,420.88, 59,121.08 and 11,711.44 is: 17,564.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,420.88 : 59,121.08 = 11,711.44 : x
  2. Step 2: Convert to fraction form
    39,420.88/59,121.08 = 11,711.44/x
  3. Step 3: Cross multiply
    39,420.88x = 59,121.08 × 11,711.44
  4. Step 4: Simplify right side
    39,420.88x = 692,392,981.16
  5. Step 5: Solve for x
    x = 692,392,981.16/39,420.88
  6. Step 6: Final answer
    x = 17,564.12

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1.5x scale

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.