Home / 28,407.54-39,203.74-15,832.38

Finding the Fourth Proportional to 28,407.54, 39,203.74 and 15,832.38

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Solution

The fourth proportional to 28,407.54, 39,203.74 and 15,832.38 is: 21,849.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,407.54 : 39,203.74 = 15,832.38 : x
  2. Step 2: Convert to fraction form
    28,407.54/39,203.74 = 15,832.38/x
  3. Step 3: Cross multiply
    28,407.54x = 39,203.74 × 15,832.38
  4. Step 4: Simplify right side
    28,407.54x = 620,688,509.10
  5. Step 5: Solve for x
    x = 620,688,509.10/28,407.54
  6. Step 6: Final answer
    x = 21,849.43

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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.