Home / 31,097.12-42,913.80-16,950.06

Finding the Fourth Proportional to 31,097.12, 42,913.80 and 16,950.06

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Solution

The fourth proportional to 31,097.12, 42,913.80 and 16,950.06 is: 23,390.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,097.12 : 42,913.80 = 16,950.06 : x
  2. Step 2: Convert to fraction form
    31,097.12/42,913.80 = 16,950.06/x
  3. Step 3: Cross multiply
    31,097.12x = 42,913.80 × 16,950.06
  4. Step 4: Simplify right side
    31,097.12x = 727,391,484.83
  5. Step 5: Solve for x
    x = 727,391,484.83/31,097.12
  6. Step 6: Final answer
    x = 23,390.96

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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.