Home / 30,560.48-42,176.96-17,135.36

Finding the Fourth Proportional to 30,560.48, 42,176.96 and 17,135.36

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Solution

The fourth proportional to 30,560.48, 42,176.96 and 17,135.36 is: 23,648.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,560.48 : 42,176.96 = 17,135.36 : x
  2. Step 2: Convert to fraction form
    30,560.48/42,176.96 = 17,135.36/x
  3. Step 3: Cross multiply
    30,560.48x = 42,176.96 × 17,135.36
  4. Step 4: Simplify right side
    30,560.48x = 722,717,393.31
  5. Step 5: Solve for x
    x = 722,717,393.31/30,560.48
  6. Step 6: Final answer
    x = 23,648.76

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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.