Home / 30,818.52-42,528.96-17,391.24

Finding the Fourth Proportional to 30,818.52, 42,528.96 and 17,391.24

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Solution

The fourth proportional to 30,818.52, 42,528.96 and 17,391.24 is: 23,999.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,818.52 : 42,528.96 = 17,391.24 : x
  2. Step 2: Convert to fraction form
    30,818.52/42,528.96 = 17,391.24/x
  3. Step 3: Cross multiply
    30,818.52x = 42,528.96 × 17,391.24
  4. Step 4: Simplify right side
    30,818.52x = 739,631,350.31
  5. Step 5: Solve for x
    x = 739,631,350.31/30,818.52
  6. Step 6: Final answer
    x = 23,999.57

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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.