Home / 30,854.41-42,579.38-16,707.55

Finding the Fourth Proportional to 30,854.41, 42,579.38 and 16,707.55

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Solution

The fourth proportional to 30,854.41, 42,579.38 and 16,707.55 is: 23,056.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,854.41 : 42,579.38 = 16,707.55 : x
  2. Step 2: Convert to fraction form
    30,854.41/42,579.38 = 16,707.55/x
  3. Step 3: Cross multiply
    30,854.41x = 42,579.38 × 16,707.55
  4. Step 4: Simplify right side
    30,854.41x = 711,397,120.32
  5. Step 5: Solve for x
    x = 711,397,120.32/30,854.41
  6. Step 6: Final answer
    x = 23,056.58

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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.