Home / 30,226.89-45,345.03-15,427.80

Finding the Fourth Proportional to 30,226.89, 45,345.03 and 15,427.80

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Solution

The fourth proportional to 30,226.89, 45,345.03 and 15,427.80 is: 23,144.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,226.89 : 45,345.03 = 15,427.80 : x
  2. Step 2: Convert to fraction form
    30,226.89/45,345.03 = 15,427.80/x
  3. Step 3: Cross multiply
    30,226.89x = 45,345.03 × 15,427.80
  4. Step 4: Simplify right side
    30,226.89x = 699,574,053.83
  5. Step 5: Solve for x
    x = 699,574,053.83/30,226.89
  6. Step 6: Final answer
    x = 23,144.10

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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.