Home / 30,121.52-41,567.21-16,509.47

Finding the Fourth Proportional to 30,121.52, 41,567.21 and 16,509.47

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Solution

The fourth proportional to 30,121.52, 41,567.21 and 16,509.47 is: 22,782.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,121.52 : 41,567.21 = 16,509.47 : x
  2. Step 2: Convert to fraction form
    30,121.52/41,567.21 = 16,509.47/x
  3. Step 3: Cross multiply
    30,121.52x = 41,567.21 × 16,509.47
  4. Step 4: Simplify right side
    30,121.52x = 686,252,316.10
  5. Step 5: Solve for x
    x = 686,252,316.10/30,121.52
  6. Step 6: Final answer
    x = 22,782.79

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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.