Home / 31,780.98-43,858.02-17,440.80

Finding the Fourth Proportional to 31,780.98, 43,858.02 and 17,440.80

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Solution

The fourth proportional to 31,780.98, 43,858.02 and 17,440.80 is: 24,068.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,780.98 : 43,858.02 = 17,440.80 : x
  2. Step 2: Convert to fraction form
    31,780.98/43,858.02 = 17,440.80/x
  3. Step 3: Cross multiply
    31,780.98x = 43,858.02 × 17,440.80
  4. Step 4: Simplify right side
    31,780.98x = 764,918,955.22
  5. Step 5: Solve for x
    x = 764,918,955.22/31,780.98
  6. Step 6: Final answer
    x = 24,068.45

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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.