Home / 30,280.05-45,389.54-19,043.42

Finding the Fourth Proportional to 30,280.05, 45,389.54 and 19,043.42

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Solution

The fourth proportional to 30,280.05, 45,389.54 and 19,043.42 is: 28,545.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,280.05 : 45,389.54 = 19,043.42 : x
  2. Step 2: Convert to fraction form
    30,280.05/45,389.54 = 19,043.42/x
  3. Step 3: Cross multiply
    30,280.05x = 45,389.54 × 19,043.42
  4. Step 4: Simplify right side
    30,280.05x = 864,372,073.83
  5. Step 5: Solve for x
    x = 864,372,073.83/30,280.05
  6. Step 6: Final answer
    x = 28,545.93

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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.