Home / 19,979.21-29,961.02-7,492.43

Finding the Fourth Proportional to 19,979.21, 29,961.02 and 7,492.43

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Solution

The fourth proportional to 19,979.21, 29,961.02 and 7,492.43 is: 11,235.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,979.21 : 29,961.02 = 7,492.43 : x
  2. Step 2: Convert to fraction form
    19,979.21/29,961.02 = 7,492.43/x
  3. Step 3: Cross multiply
    19,979.21x = 29,961.02 × 7,492.43
  4. Step 4: Simplify right side
    19,979.21x = 224,480,657.81
  5. Step 5: Solve for x
    x = 224,480,657.81/19,979.21
  6. Step 6: Final answer
    x = 11,235.72

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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.