Home / 19,242.18-28,872.40-13,328.16

Finding the Fourth Proportional to 19,242.18, 28,872.40 and 13,328.16

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Solution

The fourth proportional to 19,242.18, 28,872.40 and 13,328.16 is: 19,998.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,242.18 : 28,872.40 = 13,328.16 : x
  2. Step 2: Convert to fraction form
    19,242.18/28,872.40 = 13,328.16/x
  3. Step 3: Cross multiply
    19,242.18x = 28,872.40 × 13,328.16
  4. Step 4: Simplify right side
    19,242.18x = 384,815,966.78
  5. Step 5: Solve for x
    x = 384,815,966.78/19,242.18
  6. Step 6: Final answer
    x = 19,998.56

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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.