Home / 30,532.22-42,133.83-16,920.14

Finding the Fourth Proportional to 30,532.22, 42,133.83 and 16,920.14

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Solution

The fourth proportional to 30,532.22, 42,133.83 and 16,920.14 is: 23,349.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,532.22 : 42,133.83 = 16,920.14 : x
  2. Step 2: Convert to fraction form
    30,532.22/42,133.83 = 16,920.14/x
  3. Step 3: Cross multiply
    30,532.22x = 42,133.83 × 16,920.14
  4. Step 4: Simplify right side
    30,532.22x = 712,910,407.67
  5. Step 5: Solve for x
    x = 712,910,407.67/30,532.22
  6. Step 6: Final answer
    x = 23,349.45

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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.