Home / 30,525.27-42,151.71-19,213.66

Finding the Fourth Proportional to 30,525.27, 42,151.71 and 19,213.66

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Solution

The fourth proportional to 30,525.27, 42,151.71 and 19,213.66 is: 26,531.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,525.27 : 42,151.71 = 19,213.66 : x
  2. Step 2: Convert to fraction form
    30,525.27/42,151.71 = 19,213.66/x
  3. Step 3: Cross multiply
    30,525.27x = 42,151.71 × 19,213.66
  4. Step 4: Simplify right side
    30,525.27x = 809,888,528.29
  5. Step 5: Solve for x
    x = 809,888,528.29/30,525.27
  6. Step 6: Final answer
    x = 26,531.74

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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.