Home / 31,877.02-43,989.51-18,446.41

Finding the Fourth Proportional to 31,877.02, 43,989.51 and 18,446.41

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Solution

The fourth proportional to 31,877.02, 43,989.51 and 18,446.41 is: 25,455.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,877.02 : 43,989.51 = 18,446.41 : x
  2. Step 2: Convert to fraction form
    31,877.02/43,989.51 = 18,446.41/x
  3. Step 3: Cross multiply
    31,877.02x = 43,989.51 × 18,446.41
  4. Step 4: Simplify right side
    31,877.02x = 811,448,537.16
  5. Step 5: Solve for x
    x = 811,448,537.16/31,877.02
  6. Step 6: Final answer
    x = 25,455.60

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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.