Home / 30,545.60-42,153.36-18,609.44

Finding the Fourth Proportional to 30,545.60, 42,153.36 and 18,609.44

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Solution

The fourth proportional to 30,545.60, 42,153.36 and 18,609.44 is: 25,681.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,545.60 : 42,153.36 = 18,609.44 : x
  2. Step 2: Convert to fraction form
    30,545.60/42,153.36 = 18,609.44/x
  3. Step 3: Cross multiply
    30,545.60x = 42,153.36 × 18,609.44
  4. Step 4: Simplify right side
    30,545.60x = 784,450,423.72
  5. Step 5: Solve for x
    x = 784,450,423.72/30,545.60
  6. Step 6: Final answer
    x = 25,681.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.