Home / 30,337.28-41,865.28-16,909.12

Finding the Fourth Proportional to 30,337.28, 41,865.28 and 16,909.12

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Solution

The fourth proportional to 30,337.28, 41,865.28 and 16,909.12 is: 23,334.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,337.28 : 41,865.28 = 16,909.12 : x
  2. Step 2: Convert to fraction form
    30,337.28/41,865.28 = 16,909.12/x
  3. Step 3: Cross multiply
    30,337.28x = 41,865.28 × 16,909.12
  4. Step 4: Simplify right side
    30,337.28x = 707,905,043.35
  5. Step 5: Solve for x
    x = 707,905,043.35/30,337.28
  6. Step 6: Final answer
    x = 23,334.49

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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.