Home / 19,909.32-27,483.48-12,847.20

Finding the Fourth Proportional to 19,909.32, 27,483.48 and 12,847.20

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Solution

The fourth proportional to 19,909.32, 27,483.48 and 12,847.20 is: 17,734.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,909.32 : 27,483.48 = 12,847.20 : x
  2. Step 2: Convert to fraction form
    19,909.32/27,483.48 = 12,847.20/x
  3. Step 3: Cross multiply
    19,909.32x = 27,483.48 × 12,847.20
  4. Step 4: Simplify right side
    19,909.32x = 353,085,764.26
  5. Step 5: Solve for x
    x = 353,085,764.26/19,909.32
  6. Step 6: Final answer
    x = 17,734.70

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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.