Home / 28,370.96-39,154.56-15,797.60

Finding the Fourth Proportional to 28,370.96, 39,154.56 and 15,797.60

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Solution

The fourth proportional to 28,370.96, 39,154.56 and 15,797.60 is: 21,802.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,370.96 : 39,154.56 = 15,797.60 : x
  2. Step 2: Convert to fraction form
    28,370.96/39,154.56 = 15,797.60/x
  3. Step 3: Cross multiply
    28,370.96x = 39,154.56 × 15,797.60
  4. Step 4: Simplify right side
    28,370.96x = 618,548,077.06
  5. Step 5: Solve for x
    x = 618,548,077.06/28,370.96
  6. Step 6: Final answer
    x = 21,802.16

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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.