Home / 30,458.05-42,037.31-17,718.63

Finding the Fourth Proportional to 30,458.05, 42,037.31 and 17,718.63

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Solution

The fourth proportional to 30,458.05, 42,037.31 and 17,718.63 is: 24,454.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,458.05 : 42,037.31 = 17,718.63 : x
  2. Step 2: Convert to fraction form
    30,458.05/42,037.31 = 17,718.63/x
  3. Step 3: Cross multiply
    30,458.05x = 42,037.31 × 17,718.63
  4. Step 4: Simplify right side
    30,458.05x = 744,843,542.09
  5. Step 5: Solve for x
    x = 744,843,542.09/30,458.05
  6. Step 6: Final answer
    x = 24,454.74

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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.