Home / 30,210.53-41,689.98-16,781.45

Finding the Fourth Proportional to 30,210.53, 41,689.98 and 16,781.45

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Solution

The fourth proportional to 30,210.53, 41,689.98 and 16,781.45 is: 23,158.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,210.53 : 41,689.98 = 16,781.45 : x
  2. Step 2: Convert to fraction form
    30,210.53/41,689.98 = 16,781.45/x
  3. Step 3: Cross multiply
    30,210.53x = 41,689.98 × 16,781.45
  4. Step 4: Simplify right side
    30,210.53x = 699,618,106.42
  5. Step 5: Solve for x
    x = 699,618,106.42/30,210.53
  6. Step 6: Final answer
    x = 23,158.09

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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.