Home / 31,040.56-42,836.88-16,894.32

Finding the Fourth Proportional to 31,040.56, 42,836.88 and 16,894.32

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Solution

The fourth proportional to 31,040.56, 42,836.88 and 16,894.32 is: 23,314.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,040.56 : 42,836.88 = 16,894.32 : x
  2. Step 2: Convert to fraction form
    31,040.56/42,836.88 = 16,894.32/x
  3. Step 3: Cross multiply
    31,040.56x = 42,836.88 × 16,894.32
  4. Step 4: Simplify right side
    31,040.56x = 723,699,958.52
  5. Step 5: Solve for x
    x = 723,699,958.52/31,040.56
  6. Step 6: Final answer
    x = 23,314.66

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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.