Home / 19,865.32-27,403.86-13,492.24

Finding the Fourth Proportional to 19,865.32, 27,403.86 and 13,492.24

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Solution

The fourth proportional to 19,865.32, 27,403.86 and 13,492.24 is: 18,612.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,865.32 : 27,403.86 = 13,492.24 : x
  2. Step 2: Convert to fraction form
    19,865.32/27,403.86 = 13,492.24/x
  3. Step 3: Cross multiply
    19,865.32x = 27,403.86 × 13,492.24
  4. Step 4: Simplify right side
    19,865.32x = 369,739,456.05
  5. Step 5: Solve for x
    x = 369,739,456.05/19,865.32
  6. Step 6: Final answer
    x = 18,612.31

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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.