Home / 31,055.88-42,858.02-16,909.63

Finding the Fourth Proportional to 31,055.88, 42,858.02 and 16,909.63

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Solution

The fourth proportional to 31,055.88, 42,858.02 and 16,909.63 is: 23,335.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,055.88 : 42,858.02 = 16,909.63 : x
  2. Step 2: Convert to fraction form
    31,055.88/42,858.02 = 16,909.63/x
  3. Step 3: Cross multiply
    31,055.88x = 42,858.02 × 16,909.63
  4. Step 4: Simplify right side
    31,055.88x = 724,713,260.73
  5. Step 5: Solve for x
    x = 724,713,260.73/31,055.88
  6. Step 6: Final answer
    x = 23,335.78

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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.