Home / 28,036.25-38,688.08-15,773.51

Finding the Fourth Proportional to 28,036.25, 38,688.08 and 15,773.51

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Solution

The fourth proportional to 28,036.25, 38,688.08 and 15,773.51 is: 21,766.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,036.25 : 38,688.08 = 15,773.51 : x
  2. Step 2: Convert to fraction form
    28,036.25/38,688.08 = 15,773.51/x
  3. Step 3: Cross multiply
    28,036.25x = 38,688.08 × 15,773.51
  4. Step 4: Simplify right side
    28,036.25x = 610,246,544.45
  5. Step 5: Solve for x
    x = 610,246,544.45/28,036.25
  6. Step 6: Final answer
    x = 21,766.34

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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.