Home / 30,210.84-41,690.08-16,781.76

Finding the Fourth Proportional to 30,210.84, 41,690.08 and 16,781.76

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Solution

The fourth proportional to 30,210.84, 41,690.08 and 16,781.76 is: 23,158.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,210.84 : 41,690.08 = 16,781.76 : x
  2. Step 2: Convert to fraction form
    30,210.84/41,690.08 = 16,781.76/x
  3. Step 3: Cross multiply
    30,210.84x = 41,690.08 × 16,781.76
  4. Step 4: Simplify right side
    30,210.84x = 699,632,916.94
  5. Step 5: Solve for x
    x = 699,632,916.94/30,210.84
  6. Step 6: Final answer
    x = 23,158.34

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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.