Home / 30,887.66-42,625.12-16,740.46

Finding the Fourth Proportional to 30,887.66, 42,625.12 and 16,740.46

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Solution

The fourth proportional to 30,887.66, 42,625.12 and 16,740.46 is: 23,101.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,887.66 : 42,625.12 = 16,740.46 : x
  2. Step 2: Convert to fraction form
    30,887.66/42,625.12 = 16,740.46/x
  3. Step 3: Cross multiply
    30,887.66x = 42,625.12 × 16,740.46
  4. Step 4: Simplify right side
    30,887.66x = 713,564,116.36
  5. Step 5: Solve for x
    x = 713,564,116.36/30,887.66
  6. Step 6: Final answer
    x = 23,101.92

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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.