Home / 30,079.95-45,119.94-19,003.47

Finding the Fourth Proportional to 30,079.95, 45,119.94 and 19,003.47

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Solution

The fourth proportional to 30,079.95, 45,119.94 and 19,003.47 is: 28,505.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,079.95 : 45,119.94 = 19,003.47 : x
  2. Step 2: Convert to fraction form
    30,079.95/45,119.94 = 19,003.47/x
  3. Step 3: Cross multiply
    30,079.95x = 45,119.94 × 19,003.47
  4. Step 4: Simplify right side
    30,079.95x = 857,435,426.19
  5. Step 5: Solve for x
    x = 857,435,426.19/30,079.95
  6. Step 6: Final answer
    x = 28,505.21

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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.