Home / 31,127.20-42,953.86-17,696.60

Finding the Fourth Proportional to 31,127.20, 42,953.86 and 17,696.60

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Solution

The fourth proportional to 31,127.20, 42,953.86 and 17,696.60 is: 24,420.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,127.20 : 42,953.86 = 17,696.60 : x
  2. Step 2: Convert to fraction form
    31,127.20/42,953.86 = 17,696.60/x
  3. Step 3: Cross multiply
    31,127.20x = 42,953.86 × 17,696.60
  4. Step 4: Simplify right side
    31,127.20x = 760,137,278.88
  5. Step 5: Solve for x
    x = 760,137,278.88/31,127.20
  6. Step 6: Final answer
    x = 24,420.36

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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.