Home / 30,777.21-42,472.53-16,630.02

Finding the Fourth Proportional to 30,777.21, 42,472.53 and 16,630.02

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Solution

The fourth proportional to 30,777.21, 42,472.53 and 16,630.02 is: 22,949.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,777.21 : 42,472.53 = 16,630.02 : x
  2. Step 2: Convert to fraction form
    30,777.21/42,472.53 = 16,630.02/x
  3. Step 3: Cross multiply
    30,777.21x = 42,472.53 × 16,630.02
  4. Step 4: Simplify right side
    30,777.21x = 706,319,023.35
  5. Step 5: Solve for x
    x = 706,319,023.35/30,777.21
  6. Step 6: Final answer
    x = 22,949.42

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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.