Home / 30,976.76-42,746.64-16,829.24

Finding the Fourth Proportional to 30,976.76, 42,746.64 and 16,829.24

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Solution

The fourth proportional to 30,976.76, 42,746.64 and 16,829.24 is: 23,223.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,976.76 : 42,746.64 = 16,829.24 : x
  2. Step 2: Convert to fraction form
    30,976.76/42,746.64 = 16,829.24/x
  3. Step 3: Cross multiply
    30,976.76x = 42,746.64 × 16,829.24
  4. Step 4: Simplify right side
    30,976.76x = 719,393,463.75
  5. Step 5: Solve for x
    x = 719,393,463.75/30,976.76
  6. Step 6: Final answer
    x = 23,223.65

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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.