Home / 28,006.29-42,017.24-12,212.70

Finding the Fourth Proportional to 28,006.29, 42,017.24 and 12,212.70

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Solution

The fourth proportional to 28,006.29, 42,017.24 and 12,212.70 is: 18,322.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,006.29 : 42,017.24 = 12,212.70 : x
  2. Step 2: Convert to fraction form
    28,006.29/42,017.24 = 12,212.70/x
  3. Step 3: Cross multiply
    28,006.29x = 42,017.24 × 12,212.70
  4. Step 4: Simplify right side
    28,006.29x = 513,143,885.88
  5. Step 5: Solve for x
    x = 513,143,885.88/28,006.29
  6. Step 6: Final answer
    x = 18,322.45

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1.5x scale

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.