Home / 30,442.05-42,008.47-17,010.69

Finding the Fourth Proportional to 30,442.05, 42,008.47 and 17,010.69

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Solution

The fourth proportional to 30,442.05, 42,008.47 and 17,010.69 is: 23,473.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,442.05 : 42,008.47 = 17,010.69 : x
  2. Step 2: Convert to fraction form
    30,442.05/42,008.47 = 17,010.69/x
  3. Step 3: Cross multiply
    30,442.05x = 42,008.47 × 17,010.69
  4. Step 4: Simplify right side
    30,442.05x = 714,592,924.28
  5. Step 5: Solve for x
    x = 714,592,924.28/30,442.05
  6. Step 6: Final answer
    x = 23,473.87

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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.