Home / 19,438.59-29,152-5,395.21

Finding the Fourth Proportional to 19,438.59, 29,152 and 5,395.21

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Solution

The fourth proportional to 19,438.59, 29,152 and 5,395.21 is: 8,091.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,438.59 : 29,152 = 5,395.21 : x
  2. Step 2: Convert to fraction form
    19,438.59/29,152 = 5,395.21/x
  3. Step 3: Cross multiply
    19,438.59x = 29,152 × 5,395.21
  4. Step 4: Simplify right side
    19,438.59x = 157,281,161.92
  5. Step 5: Solve for x
    x = 157,281,161.92/19,438.59
  6. Step 6: Final answer
    x = 8,091.18

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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.