Home / 28,211.16-38,930.45-16,274.19

Finding the Fourth Proportional to 28,211.16, 38,930.45 and 16,274.19

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Solution

The fourth proportional to 28,211.16, 38,930.45 and 16,274.19 is: 22,457.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,211.16 : 38,930.45 = 16,274.19 : x
  2. Step 2: Convert to fraction form
    28,211.16/38,930.45 = 16,274.19/x
  3. Step 3: Cross multiply
    28,211.16x = 38,930.45 × 16,274.19
  4. Step 4: Simplify right side
    28,211.16x = 633,561,458.71
  5. Step 5: Solve for x
    x = 633,561,458.71/28,211.16
  6. Step 6: Final answer
    x = 22,457.83

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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.