Home / 30,972.23-42,741.64-16,824.97

Finding the Fourth Proportional to 30,972.23, 42,741.64 and 16,824.97

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Solution

The fourth proportional to 30,972.23, 42,741.64 and 16,824.97 is: 23,218.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,972.23 : 42,741.64 = 16,824.97 : x
  2. Step 2: Convert to fraction form
    30,972.23/42,741.64 = 16,824.97/x
  3. Step 3: Cross multiply
    30,972.23x = 42,741.64 × 16,824.97
  4. Step 4: Simplify right side
    30,972.23x = 719,126,810.75
  5. Step 5: Solve for x
    x = 719,126,810.75/30,972.23
  6. Step 6: Final answer
    x = 23,218.44

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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.