Home / 30,436.02-41,998.59-20,884.10

Finding the Fourth Proportional to 30,436.02, 41,998.59 and 20,884.10

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Solution

The fourth proportional to 30,436.02, 41,998.59 and 20,884.10 is: 28,817.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,436.02 : 41,998.59 = 20,884.10 : x
  2. Step 2: Convert to fraction form
    30,436.02/41,998.59 = 20,884.10/x
  3. Step 3: Cross multiply
    30,436.02x = 41,998.59 × 20,884.10
  4. Step 4: Simplify right side
    30,436.02x = 877,102,543.43
  5. Step 5: Solve for x
    x = 877,102,543.43/30,436.02
  6. Step 6: Final answer
    x = 28,817.91

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Double scale
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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.