Home / 30,449.07-42,019.56-17,020.35

Finding the Fourth Proportional to 30,449.07, 42,019.56 and 17,020.35

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Solution

The fourth proportional to 30,449.07, 42,019.56 and 17,020.35 is: 23,488.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,449.07 : 42,019.56 = 17,020.35 : x
  2. Step 2: Convert to fraction form
    30,449.07/42,019.56 = 17,020.35/x
  3. Step 3: Cross multiply
    30,449.07x = 42,019.56 × 17,020.35
  4. Step 4: Simplify right side
    30,449.07x = 715,187,618.05
  5. Step 5: Solve for x
    x = 715,187,618.05/30,449.07
  6. Step 6: Final answer
    x = 23,488.00

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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.