Home / 30,641.69-42,278.97-17,889.08

Finding the Fourth Proportional to 30,641.69, 42,278.97 and 17,889.08

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Solution

The fourth proportional to 30,641.69, 42,278.97 and 17,889.08 is: 24,683.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,641.69 : 42,278.97 = 17,889.08 : x
  2. Step 2: Convert to fraction form
    30,641.69/42,278.97 = 17,889.08/x
  3. Step 3: Cross multiply
    30,641.69x = 42,278.97 × 17,889.08
  4. Step 4: Simplify right side
    30,641.69x = 756,331,876.65
  5. Step 5: Solve for x
    x = 756,331,876.65/30,641.69
  6. Step 6: Final answer
    x = 24,683.10

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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.