Home / 28,407.66-39,203.91-15,832.50

Finding the Fourth Proportional to 28,407.66, 39,203.91 and 15,832.50

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Solution

The fourth proportional to 28,407.66, 39,203.91 and 15,832.50 is: 21,849.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,407.66 : 39,203.91 = 15,832.50 : x
  2. Step 2: Convert to fraction form
    28,407.66/39,203.91 = 15,832.50/x
  3. Step 3: Cross multiply
    28,407.66x = 39,203.91 × 15,832.50
  4. Step 4: Simplify right side
    28,407.66x = 620,695,905.08
  5. Step 5: Solve for x
    x = 620,695,905.08/28,407.66
  6. Step 6: Final answer
    x = 21,849.60

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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.