Home / 26,019.05-38,970.21-20,157.89

Finding the Fourth Proportional to 26,019.05, 38,970.21 and 20,157.89

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Solution

The fourth proportional to 26,019.05, 38,970.21 and 20,157.89 is: 30,191.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,019.05 : 38,970.21 = 20,157.89 : x
  2. Step 2: Convert to fraction form
    26,019.05/38,970.21 = 20,157.89/x
  3. Step 3: Cross multiply
    26,019.05x = 38,970.21 × 20,157.89
  4. Step 4: Simplify right side
    26,019.05x = 785,557,206.46
  5. Step 5: Solve for x
    x = 785,557,206.46/26,019.05
  6. Step 6: Final answer
    x = 30,191.62

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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.