Home / 30,363.81-45,545.99-10,642.34

Finding the Fourth Proportional to 30,363.81, 45,545.99 and 10,642.34

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Solution

The fourth proportional to 30,363.81, 45,545.99 and 10,642.34 is: 15,963.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,363.81 : 45,545.99 = 10,642.34 : x
  2. Step 2: Convert to fraction form
    30,363.81/45,545.99 = 10,642.34/x
  3. Step 3: Cross multiply
    30,363.81x = 45,545.99 × 10,642.34
  4. Step 4: Simplify right side
    30,363.81x = 484,715,630.27
  5. Step 5: Solve for x
    x = 484,715,630.27/30,363.81
  6. Step 6: Final answer
    x = 15,963.60

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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.