Home / 28,113.96-38,799.74-15,541.14

Finding the Fourth Proportional to 28,113.96, 38,799.74 and 15,541.14

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Solution

The fourth proportional to 28,113.96, 38,799.74 and 15,541.14 is: 21,448.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,113.96 : 38,799.74 = 15,541.14 : x
  2. Step 2: Convert to fraction form
    28,113.96/38,799.74 = 15,541.14/x
  3. Step 3: Cross multiply
    28,113.96x = 38,799.74 × 15,541.14
  4. Step 4: Simplify right side
    28,113.96x = 602,992,113.60
  5. Step 5: Solve for x
    x = 602,992,113.60/28,113.96
  6. Step 6: Final answer
    x = 21,448.14

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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.