Home / 19,438.81-29,162.85-6,291.18

Finding the Fourth Proportional to 19,438.81, 29,162.85 and 6,291.18

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Solution

The fourth proportional to 19,438.81, 29,162.85 and 6,291.18 is: 9,438.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,438.81 : 29,162.85 = 6,291.18 : x
  2. Step 2: Convert to fraction form
    19,438.81/29,162.85 = 6,291.18/x
  3. Step 3: Cross multiply
    19,438.81x = 29,162.85 × 6,291.18
  4. Step 4: Simplify right side
    19,438.81x = 183,468,857.20
  5. Step 5: Solve for x
    x = 183,468,857.20/19,438.81
  6. Step 6: Final answer
    x = 9,438.27

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1.5x scale

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.