Home / 30,777.96-42,473.57-16,630.77

Finding the Fourth Proportional to 30,777.96, 42,473.57 and 16,630.77

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Solution

The fourth proportional to 30,777.96, 42,473.57 and 16,630.77 is: 22,950.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,777.96 : 42,473.57 = 16,630.77 : x
  2. Step 2: Convert to fraction form
    30,777.96/42,473.57 = 16,630.77/x
  3. Step 3: Cross multiply
    30,777.96x = 42,473.57 × 16,630.77
  4. Step 4: Simplify right side
    30,777.96x = 706,368,090.60
  5. Step 5: Solve for x
    x = 706,368,090.60/30,777.96
  6. Step 6: Final answer
    x = 22,950.45

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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.