Home / 38,015.43-52,459.98-20,788.21

Finding the Fourth Proportional to 38,015.43, 52,459.98 and 20,788.21

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Solution

The fourth proportional to 38,015.43, 52,459.98 and 20,788.21 is: 28,687.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,015.43 : 52,459.98 = 20,788.21 : x
  2. Step 2: Convert to fraction form
    38,015.43/52,459.98 = 20,788.21/x
  3. Step 3: Cross multiply
    38,015.43x = 52,459.98 × 20,788.21
  4. Step 4: Simplify right side
    38,015.43x = 1,090,549,277.56
  5. Step 5: Solve for x
    x = 1,090,549,277.56/38,015.43
  6. Step 6: Final answer
    x = 28,687.02

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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.