Home / 30,435.49-42,001.17-17,007.31

Finding the Fourth Proportional to 30,435.49, 42,001.17 and 17,007.31

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Solution

The fourth proportional to 30,435.49, 42,001.17 and 17,007.31 is: 23,470.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,435.49 : 42,001.17 = 17,007.31 : x
  2. Step 2: Convert to fraction form
    30,435.49/42,001.17 = 17,007.31/x
  3. Step 3: Cross multiply
    30,435.49x = 42,001.17 × 17,007.31
  4. Step 4: Simplify right side
    30,435.49x = 714,326,918.55
  5. Step 5: Solve for x
    x = 714,326,918.55/30,435.49
  6. Step 6: Final answer
    x = 23,470.20

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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.