Home / 19,247.85-28,881.35-10,809.12

Finding the Fourth Proportional to 19,247.85, 28,881.35 and 10,809.12

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Solution

The fourth proportional to 19,247.85, 28,881.35 and 10,809.12 is: 16,219.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,247.85 : 28,881.35 = 10,809.12 : x
  2. Step 2: Convert to fraction form
    19,247.85/28,881.35 = 10,809.12/x
  3. Step 3: Cross multiply
    19,247.85x = 28,881.35 × 10,809.12
  4. Step 4: Simplify right side
    19,247.85x = 312,181,977.91
  5. Step 5: Solve for x
    x = 312,181,977.91/19,247.85
  6. Step 6: Final answer
    x = 16,219.06

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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.