Home / 30,927.80-42,680.37-17,498.79

Finding the Fourth Proportional to 30,927.80, 42,680.37 and 17,498.79

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Solution

The fourth proportional to 30,927.80, 42,680.37 and 17,498.79 is: 24,148.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,927.80 : 42,680.37 = 17,498.79 : x
  2. Step 2: Convert to fraction form
    30,927.80/42,680.37 = 17,498.79/x
  3. Step 3: Cross multiply
    30,927.80x = 42,680.37 × 17,498.79
  4. Step 4: Simplify right side
    30,927.80x = 746,854,831.75
  5. Step 5: Solve for x
    x = 746,854,831.75/30,927.80
  6. Step 6: Final answer
    x = 24,148.34

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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.