Home / 28,582.80-42,875.88-11,052.72

Finding the Fourth Proportional to 28,582.80, 42,875.88 and 11,052.72

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Solution

The fourth proportional to 28,582.80, 42,875.88 and 11,052.72 is: 16,579.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,582.80 : 42,875.88 = 11,052.72 : x
  2. Step 2: Convert to fraction form
    28,582.80/42,875.88 = 11,052.72/x
  3. Step 3: Cross multiply
    28,582.80x = 42,875.88 × 11,052.72
  4. Step 4: Simplify right side
    28,582.80x = 473,895,096.39
  5. Step 5: Solve for x
    x = 473,895,096.39/28,582.80
  6. Step 6: Final answer
    x = 16,579.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.