Home / 42,583.42-63,874.80-10,990.79

Finding the Fourth Proportional to 42,583.42, 63,874.80 and 10,990.79

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Solution

The fourth proportional to 42,583.42, 63,874.80 and 10,990.79 is: 16,486.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,583.42 : 63,874.80 = 10,990.79 : x
  2. Step 2: Convert to fraction form
    42,583.42/63,874.80 = 10,990.79/x
  3. Step 3: Cross multiply
    42,583.42x = 63,874.80 × 10,990.79
  4. Step 4: Simplify right side
    42,583.42x = 702,034,513.09
  5. Step 5: Solve for x
    x = 702,034,513.09/42,583.42
  6. Step 6: Final answer
    x = 16,486.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.