Home / 30,385.20-41,931.65-16,957.25

Finding the Fourth Proportional to 30,385.20, 41,931.65 and 16,957.25

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Solution

The fourth proportional to 30,385.20, 41,931.65 and 16,957.25 is: 23,401.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,385.20 : 41,931.65 = 16,957.25 : x
  2. Step 2: Convert to fraction form
    30,385.20/41,931.65 = 16,957.25/x
  3. Step 3: Cross multiply
    30,385.20x = 41,931.65 × 16,957.25
  4. Step 4: Simplify right side
    30,385.20x = 711,045,471.96
  5. Step 5: Solve for x
    x = 711,045,471.96/30,385.20
  6. Step 6: Final answer
    x = 23,401.05

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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.