Home / 30,798.88-42,502.46-16,651.69

Finding the Fourth Proportional to 30,798.88, 42,502.46 and 16,651.69

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Solution

The fourth proportional to 30,798.88, 42,502.46 and 16,651.69 is: 22,979.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,798.88 : 42,502.46 = 16,651.69 : x
  2. Step 2: Convert to fraction form
    30,798.88/42,502.46 = 16,651.69/x
  3. Step 3: Cross multiply
    30,798.88x = 42,502.46 × 16,651.69
  4. Step 4: Simplify right side
    30,798.88x = 707,737,598.64
  5. Step 5: Solve for x
    x = 707,737,598.64/30,798.88
  6. Step 6: Final answer
    x = 22,979.33

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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.