Home / 30,860.64-42,587.52-16,713.76

Finding the Fourth Proportional to 30,860.64, 42,587.52 and 16,713.76

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Solution

The fourth proportional to 30,860.64, 42,587.52 and 16,713.76 is: 23,064.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,860.64 : 42,587.52 = 16,713.76 : x
  2. Step 2: Convert to fraction form
    30,860.64/42,587.52 = 16,713.76/x
  3. Step 3: Cross multiply
    30,860.64x = 42,587.52 × 16,713.76
  4. Step 4: Simplify right side
    30,860.64x = 711,797,588.28
  5. Step 5: Solve for x
    x = 711,797,588.28/30,860.64
  6. Step 6: Final answer
    x = 23,064.90

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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.