Home / 30,658.02-42,308.82-17,228.47

Finding the Fourth Proportional to 30,658.02, 42,308.82 and 17,228.47

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Solution

The fourth proportional to 30,658.02, 42,308.82 and 17,228.47 is: 23,775.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,658.02 : 42,308.82 = 17,228.47 : x
  2. Step 2: Convert to fraction form
    30,658.02/42,308.82 = 17,228.47/x
  3. Step 3: Cross multiply
    30,658.02x = 42,308.82 × 17,228.47
  4. Step 4: Simplify right side
    30,658.02x = 728,916,130.33
  5. Step 5: Solve for x
    x = 728,916,130.33/30,658.02
  6. Step 6: Final answer
    x = 23,775.71

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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.