Home / 25,457.61-38,171.07-11,415.10

Finding the Fourth Proportional to 25,457.61, 38,171.07 and 11,415.10

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Solution

The fourth proportional to 25,457.61, 38,171.07 and 11,415.10 is: 17,115.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,457.61 : 38,171.07 = 11,415.10 : x
  2. Step 2: Convert to fraction form
    25,457.61/38,171.07 = 11,415.10/x
  3. Step 3: Cross multiply
    25,457.61x = 38,171.07 × 11,415.10
  4. Step 4: Simplify right side
    25,457.61x = 435,726,581.16
  5. Step 5: Solve for x
    x = 435,726,581.16/25,457.61
  6. Step 6: Final answer
    x = 17,115.77

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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.