Home / 28,506.28-39,334.26-15,928.60

Finding the Fourth Proportional to 28,506.28, 39,334.26 and 15,928.60

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Solution

The fourth proportional to 28,506.28, 39,334.26 and 15,928.60 is: 21,979.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,506.28 : 39,334.26 = 15,928.60 : x
  2. Step 2: Convert to fraction form
    28,506.28/39,334.26 = 15,928.60/x
  3. Step 3: Cross multiply
    28,506.28x = 39,334.26 × 15,928.60
  4. Step 4: Simplify right side
    28,506.28x = 626,539,693.84
  5. Step 5: Solve for x
    x = 626,539,693.84/28,506.28
  6. Step 6: Final answer
    x = 21,979.01

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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.