Home / 28,678.33-39,574.66-15,932.32

Finding the Fourth Proportional to 28,678.33, 39,574.66 and 15,932.32

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Solution

The fourth proportional to 28,678.33, 39,574.66 and 15,932.32 is: 21,985.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,678.33 : 39,574.66 = 15,932.32 : x
  2. Step 2: Convert to fraction form
    28,678.33/39,574.66 = 15,932.32/x
  3. Step 3: Cross multiply
    28,678.33x = 39,574.66 × 15,932.32
  4. Step 4: Simplify right side
    28,678.33x = 630,516,147.01
  5. Step 5: Solve for x
    x = 630,516,147.01/28,678.33
  6. Step 6: Final answer
    x = 21,985.80

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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.