Home / 19,909.32-27,477.39-12,856.24

Finding the Fourth Proportional to 19,909.32, 27,477.39 and 12,856.24

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Solution

The fourth proportional to 19,909.32, 27,477.39 and 12,856.24 is: 17,743.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,909.32 : 27,477.39 = 12,856.24 : x
  2. Step 2: Convert to fraction form
    19,909.32/27,477.39 = 12,856.24/x
  3. Step 3: Cross multiply
    19,909.32x = 27,477.39 × 12,856.24
  4. Step 4: Simplify right side
    19,909.32x = 353,255,920.41
  5. Step 5: Solve for x
    x = 353,255,920.41/19,909.32
  6. Step 6: Final answer
    x = 17,743.24

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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.