Home / 30,389.41-41,931.07-18,446.10

Finding the Fourth Proportional to 30,389.41, 41,931.07 and 18,446.10

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Solution

The fourth proportional to 30,389.41, 41,931.07 and 18,446.10 is: 25,451.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,389.41 : 41,931.07 = 18,446.10 : x
  2. Step 2: Convert to fraction form
    30,389.41/41,931.07 = 18,446.10/x
  3. Step 3: Cross multiply
    30,389.41x = 41,931.07 × 18,446.10
  4. Step 4: Simplify right side
    30,389.41x = 773,464,710.33
  5. Step 5: Solve for x
    x = 773,464,710.33/30,389.41
  6. Step 6: Final answer
    x = 25,451.78

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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.