Home / 30,530.28-42,129.74-17,098.44

Finding the Fourth Proportional to 30,530.28, 42,129.74 and 17,098.44

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Solution

The fourth proportional to 30,530.28, 42,129.74 and 17,098.44 is: 23,594.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,530.28 : 42,129.74 = 17,098.44 : x
  2. Step 2: Convert to fraction form
    30,530.28/42,129.74 = 17,098.44/x
  3. Step 3: Cross multiply
    30,530.28x = 42,129.74 × 17,098.44
  4. Step 4: Simplify right side
    30,530.28x = 720,352,831.61
  5. Step 5: Solve for x
    x = 720,352,831.61/30,530.28
  6. Step 6: Final answer
    x = 23,594.70

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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.