Home / 31,098.13-42,915.09-16,950.67

Finding the Fourth Proportional to 31,098.13, 42,915.09 and 16,950.67

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Solution

The fourth proportional to 31,098.13, 42,915.09 and 16,950.67 is: 23,391.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,098.13 : 42,915.09 = 16,950.67 : x
  2. Step 2: Convert to fraction form
    31,098.13/42,915.09 = 16,950.67/x
  3. Step 3: Cross multiply
    31,098.13x = 42,915.09 × 16,950.67
  4. Step 4: Simplify right side
    31,098.13x = 727,439,528.61
  5. Step 5: Solve for x
    x = 727,439,528.61/31,098.13
  6. Step 6: Final answer
    x = 23,391.75

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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.