Home / 29,199.28-40,308.42-19,128.16

Finding the Fourth Proportional to 29,199.28, 40,308.42 and 19,128.16

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Solution

The fourth proportional to 29,199.28, 40,308.42 and 19,128.16 is: 26,405.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,199.28 : 40,308.42 = 19,128.16 : x
  2. Step 2: Convert to fraction form
    29,199.28/40,308.42 = 19,128.16/x
  3. Step 3: Cross multiply
    29,199.28x = 40,308.42 × 19,128.16
  4. Step 4: Simplify right side
    29,199.28x = 771,025,907.11
  5. Step 5: Solve for x
    x = 771,025,907.11/29,199.28
  6. Step 6: Final answer
    x = 26,405.65

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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.