Home / 30,155.08-45,226.28-19,449.38

Finding the Fourth Proportional to 30,155.08, 45,226.28 and 19,449.38

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Solution

The fourth proportional to 30,155.08, 45,226.28 and 19,449.38 is: 29,169.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,155.08 : 45,226.28 = 19,449.38 : x
  2. Step 2: Convert to fraction form
    30,155.08/45,226.28 = 19,449.38/x
  3. Step 3: Cross multiply
    30,155.08x = 45,226.28 × 19,449.38
  4. Step 4: Simplify right side
    30,155.08x = 879,623,105.71
  5. Step 5: Solve for x
    x = 879,623,105.71/30,155.08
  6. Step 6: Final answer
    x = 29,169.98

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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.