Home / 30,541.30-42,145.05-17,963.62

Finding the Fourth Proportional to 30,541.30, 42,145.05 and 17,963.62

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Solution

The fourth proportional to 30,541.30, 42,145.05 and 17,963.62 is: 24,788.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,541.30 : 42,145.05 = 17,963.62 : x
  2. Step 2: Convert to fraction form
    30,541.30/42,145.05 = 17,963.62/x
  3. Step 3: Cross multiply
    30,541.30x = 42,145.05 × 17,963.62
  4. Step 4: Simplify right side
    30,541.30x = 757,077,663.08
  5. Step 5: Solve for x
    x = 757,077,663.08/30,541.30
  6. Step 6: Final answer
    x = 24,788.65

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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.