Home / 30,901.14-42,643.56-16,753.98

Finding the Fourth Proportional to 30,901.14, 42,643.56 and 16,753.98

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Solution

The fourth proportional to 30,901.14, 42,643.56 and 16,753.98 is: 23,120.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,901.14 : 42,643.56 = 16,753.98 : x
  2. Step 2: Convert to fraction form
    30,901.14/42,643.56 = 16,753.98/x
  3. Step 3: Cross multiply
    30,901.14x = 42,643.56 × 16,753.98
  4. Step 4: Simplify right side
    30,901.14x = 714,449,351.37
  5. Step 5: Solve for x
    x = 714,449,351.37/30,901.14
  6. Step 6: Final answer
    x = 23,120.49

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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.