Home / 30,975.64-42,668.22-24,990.56

Finding the Fourth Proportional to 30,975.64, 42,668.22 and 24,990.56

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Solution

The fourth proportional to 30,975.64, 42,668.22 and 24,990.56 is: 34,423.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,975.64 : 42,668.22 = 24,990.56 : x
  2. Step 2: Convert to fraction form
    30,975.64/42,668.22 = 24,990.56/x
  3. Step 3: Cross multiply
    30,975.64x = 42,668.22 × 24,990.56
  4. Step 4: Simplify right side
    30,975.64x = 1,066,302,712.00
  5. Step 5: Solve for x
    x = 1,066,302,712.00/30,975.64
  6. Step 6: Final answer
    x = 34,423.91

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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.