Home / 21,998.32-30,354.96-14,045.20

Finding the Fourth Proportional to 21,998.32, 30,354.96 and 14,045.20

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Solution

The fourth proportional to 21,998.32, 30,354.96 and 14,045.20 is: 19,380.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,998.32 : 30,354.96 = 14,045.20 : x
  2. Step 2: Convert to fraction form
    21,998.32/30,354.96 = 14,045.20/x
  3. Step 3: Cross multiply
    21,998.32x = 30,354.96 × 14,045.20
  4. Step 4: Simplify right side
    21,998.32x = 426,341,484.19
  5. Step 5: Solve for x
    x = 426,341,484.19/21,998.32
  6. Step 6: Final answer
    x = 19,380.64

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Half scale
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Double scale
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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.