Home / 30,707.47-42,376.04-17,278.46

Finding the Fourth Proportional to 30,707.47, 42,376.04 and 17,278.46

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Solution

The fourth proportional to 30,707.47, 42,376.04 and 17,278.46 is: 23,844.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,707.47 : 42,376.04 = 17,278.46 : x
  2. Step 2: Convert to fraction form
    30,707.47/42,376.04 = 17,278.46/x
  3. Step 3: Cross multiply
    30,707.47x = 42,376.04 × 17,278.46
  4. Step 4: Simplify right side
    30,707.47x = 732,192,562.96
  5. Step 5: Solve for x
    x = 732,192,562.96/30,707.47
  6. Step 6: Final answer
    x = 23,844.12

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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.