Home / 28,557.47-39,403.84-18,484.52

Finding the Fourth Proportional to 28,557.47, 39,403.84 and 18,484.52

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Solution

The fourth proportional to 28,557.47, 39,403.84 and 18,484.52 is: 25,505.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,557.47 : 39,403.84 = 18,484.52 : x
  2. Step 2: Convert to fraction form
    28,557.47/39,403.84 = 18,484.52/x
  3. Step 3: Cross multiply
    28,557.47x = 39,403.84 × 18,484.52
  4. Step 4: Simplify right side
    28,557.47x = 728,360,825.33
  5. Step 5: Solve for x
    x = 728,360,825.33/28,557.47
  6. Step 6: Final answer
    x = 25,505.09

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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.