Home / 31,600.47-47,405.55-11,880.39

Finding the Fourth Proportional to 31,600.47, 47,405.55 and 11,880.39

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Solution

The fourth proportional to 31,600.47, 47,405.55 and 11,880.39 is: 17,822.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,600.47 : 47,405.55 = 11,880.39 : x
  2. Step 2: Convert to fraction form
    31,600.47/47,405.55 = 11,880.39/x
  3. Step 3: Cross multiply
    31,600.47x = 47,405.55 × 11,880.39
  4. Step 4: Simplify right side
    31,600.47x = 563,196,422.16
  5. Step 5: Solve for x
    x = 563,196,422.16/31,600.47
  6. Step 6: Final answer
    x = 17,822.41

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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.