Home / 30,901.30-42,643.56-16,754.04

Finding the Fourth Proportional to 30,901.30, 42,643.56 and 16,754.04

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Solution

The fourth proportional to 30,901.30, 42,643.56 and 16,754.04 is: 23,120.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,901.30 : 42,643.56 = 16,754.04 : x
  2. Step 2: Convert to fraction form
    30,901.30/42,643.56 = 16,754.04/x
  3. Step 3: Cross multiply
    30,901.30x = 42,643.56 × 16,754.04
  4. Step 4: Simplify right side
    30,901.30x = 714,451,972.81
  5. Step 5: Solve for x
    x = 714,451,972.81/30,901.30
  6. Step 6: Final answer
    x = 23,120.45

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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.