Home / 19,298.49-28,996.16-12,281.55

Finding the Fourth Proportional to 19,298.49, 28,996.16 and 12,281.55

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Solution

The fourth proportional to 19,298.49, 28,996.16 and 12,281.55 is: 18,453.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,298.49 : 28,996.16 = 12,281.55 : x
  2. Step 2: Convert to fraction form
    19,298.49/28,996.16 = 12,281.55/x
  3. Step 3: Cross multiply
    19,298.49x = 28,996.16 × 12,281.55
  4. Step 4: Simplify right side
    19,298.49x = 356,117,788.85
  5. Step 5: Solve for x
    x = 356,117,788.85/19,298.49
  6. Step 6: Final answer
    x = 18,453.14

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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.