Home / 20,041.29-30,061.94-12,656.97

Finding the Fourth Proportional to 20,041.29, 30,061.94 and 12,656.97

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Solution

The fourth proportional to 20,041.29, 30,061.94 and 12,656.97 is: 18,985.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,041.29 : 30,061.94 = 12,656.97 : x
  2. Step 2: Convert to fraction form
    20,041.29/30,061.94 = 12,656.97/x
  3. Step 3: Cross multiply
    20,041.29x = 30,061.94 × 12,656.97
  4. Step 4: Simplify right side
    20,041.29x = 380,493,009.44
  5. Step 5: Solve for x
    x = 380,493,009.44/20,041.29
  6. Step 6: Final answer
    x = 18,985.46

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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.