Home / 28,225.30-38,955.99-16,286.98

Finding the Fourth Proportional to 28,225.30, 38,955.99 and 16,286.98

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Solution

The fourth proportional to 28,225.30, 38,955.99 and 16,286.98 is: 22,478.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,225.30 : 38,955.99 = 16,286.98 : x
  2. Step 2: Convert to fraction form
    28,225.30/38,955.99 = 16,286.98/x
  3. Step 3: Cross multiply
    28,225.30x = 38,955.99 × 16,286.98
  4. Step 4: Simplify right side
    28,225.30x = 634,475,430.01
  5. Step 5: Solve for x
    x = 634,475,430.01/28,225.30
  6. Step 6: Final answer
    x = 22,478.96

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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.