Home / 28,345.66-39,117.36-15,600.31

Finding the Fourth Proportional to 28,345.66, 39,117.36 and 15,600.31

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Solution

The fourth proportional to 28,345.66, 39,117.36 and 15,600.31 is: 21,528.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,345.66 : 39,117.36 = 15,600.31 : x
  2. Step 2: Convert to fraction form
    28,345.66/39,117.36 = 15,600.31/x
  3. Step 3: Cross multiply
    28,345.66x = 39,117.36 × 15,600.31
  4. Step 4: Simplify right side
    28,345.66x = 610,242,942.38
  5. Step 5: Solve for x
    x = 610,242,942.38/28,345.66
  6. Step 6: Final answer
    x = 21,528.62

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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.