Home / 25,669.12-38,486.40-13,173.52

Finding the Fourth Proportional to 25,669.12, 38,486.40 and 13,173.52

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Solution

The fourth proportional to 25,669.12, 38,486.40 and 13,173.52 is: 19,751.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,669.12 : 38,486.40 = 13,173.52 : x
  2. Step 2: Convert to fraction form
    25,669.12/38,486.40 = 13,173.52/x
  3. Step 3: Cross multiply
    25,669.12x = 38,486.40 × 13,173.52
  4. Step 4: Simplify right side
    25,669.12x = 507,001,360.13
  5. Step 5: Solve for x
    x = 507,001,360.13/25,669.12
  6. Step 6: Final answer
    x = 19,751.41

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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.