Home / 30,440.90-42,008.29-17,012.14

Finding the Fourth Proportional to 30,440.90, 42,008.29 and 17,012.14

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Solution

The fourth proportional to 30,440.90, 42,008.29 and 17,012.14 is: 23,476.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,440.90 : 42,008.29 = 17,012.14 : x
  2. Step 2: Convert to fraction form
    30,440.90/42,008.29 = 17,012.14/x
  3. Step 3: Cross multiply
    30,440.90x = 42,008.29 × 17,012.14
  4. Step 4: Simplify right side
    30,440.90x = 714,651,095.08
  5. Step 5: Solve for x
    x = 714,651,095.08/30,440.90
  6. Step 6: Final answer
    x = 23,476.68

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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.