Home / 20,501.54-28,293.75-11,548.47

Finding the Fourth Proportional to 20,501.54, 28,293.75 and 11,548.47

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Solution

The fourth proportional to 20,501.54, 28,293.75 and 11,548.47 is: 15,937.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501.54 : 28,293.75 = 11,548.47 : x
  2. Step 2: Convert to fraction form
    20,501.54/28,293.75 = 11,548.47/x
  3. Step 3: Cross multiply
    20,501.54x = 28,293.75 × 11,548.47
  4. Step 4: Simplify right side
    20,501.54x = 326,749,523.06
  5. Step 5: Solve for x
    x = 326,749,523.06/20,501.54
  6. Step 6: Final answer
    x = 15,937.81

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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.