Home / 31,255.02-43,137.50-17,647.20

Finding the Fourth Proportional to 31,255.02, 43,137.50 and 17,647.20

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Solution

The fourth proportional to 31,255.02, 43,137.50 and 17,647.20 is: 24,356.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,255.02 : 43,137.50 = 17,647.20 : x
  2. Step 2: Convert to fraction form
    31,255.02/43,137.50 = 17,647.20/x
  3. Step 3: Cross multiply
    31,255.02x = 43,137.50 × 17,647.20
  4. Step 4: Simplify right side
    31,255.02x = 761,256,001.76
  5. Step 5: Solve for x
    x = 761,256,001.76/31,255.02
  6. Step 6: Final answer
    x = 24,356.28

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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.