Home / 30,438.91-42,005.75-17,010.16

Finding the Fourth Proportional to 30,438.91, 42,005.75 and 17,010.16

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Solution

The fourth proportional to 30,438.91, 42,005.75 and 17,010.16 is: 23,474.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,438.91 : 42,005.75 = 17,010.16 : x
  2. Step 2: Convert to fraction form
    30,438.91/42,005.75 = 17,010.16/x
  3. Step 3: Cross multiply
    30,438.91x = 42,005.75 × 17,010.16
  4. Step 4: Simplify right side
    30,438.91x = 714,524,429.16
  5. Step 5: Solve for x
    x = 714,524,429.16/30,438.91
  6. Step 6: Final answer
    x = 23,474.05

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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.