Home / 30,448.64-42,018.24-17,019.92

Finding the Fourth Proportional to 30,448.64, 42,018.24 and 17,019.92

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Solution

The fourth proportional to 30,448.64, 42,018.24 and 17,019.92 is: 23,487.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,448.64 : 42,018.24 = 17,019.92 : x
  2. Step 2: Convert to fraction form
    30,448.64/42,018.24 = 17,019.92/x
  3. Step 3: Cross multiply
    30,448.64x = 42,018.24 × 17,019.92
  4. Step 4: Simplify right side
    30,448.64x = 715,147,083.34
  5. Step 5: Solve for x
    x = 715,147,083.34/30,448.64
  6. Step 6: Final answer
    x = 23,487.00

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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.