Home / 30,860.60-42,587.64-16,713.44

Finding the Fourth Proportional to 30,860.60, 42,587.64 and 16,713.44

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Solution

The fourth proportional to 30,860.60, 42,587.64 and 16,713.44 is: 23,064.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,860.60 : 42,587.64 = 16,713.44 : x
  2. Step 2: Convert to fraction form
    30,860.60/42,587.64 = 16,713.44/x
  3. Step 3: Cross multiply
    30,860.60x = 42,587.64 × 16,713.44
  4. Step 4: Simplify right side
    30,860.60x = 711,785,965.88
  5. Step 5: Solve for x
    x = 711,785,965.88/30,860.60
  6. Step 6: Final answer
    x = 23,064.55

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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.