Home / 20,637.48-28,460.10-13,924.20

Finding the Fourth Proportional to 20,637.48, 28,460.10 and 13,924.20

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Solution

The fourth proportional to 20,637.48, 28,460.10 and 13,924.20 is: 19,202.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,637.48 : 28,460.10 = 13,924.20 : x
  2. Step 2: Convert to fraction form
    20,637.48/28,460.10 = 13,924.20/x
  3. Step 3: Cross multiply
    20,637.48x = 28,460.10 × 13,924.20
  4. Step 4: Simplify right side
    20,637.48x = 396,284,124.42
  5. Step 5: Solve for x
    x = 396,284,124.42/20,637.48
  6. Step 6: Final answer
    x = 19,202.16

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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.