Home / 28,244.76-38,973.60-15,669.60

Finding the Fourth Proportional to 28,244.76, 38,973.60 and 15,669.60

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Solution

The fourth proportional to 28,244.76, 38,973.60 and 15,669.60 is: 21,621.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,244.76 : 38,973.60 = 15,669.60 : x
  2. Step 2: Convert to fraction form
    28,244.76/38,973.60 = 15,669.60/x
  3. Step 3: Cross multiply
    28,244.76x = 38,973.60 × 15,669.60
  4. Step 4: Simplify right side
    28,244.76x = 610,700,722.56
  5. Step 5: Solve for x
    x = 610,700,722.56/28,244.76
  6. Step 6: Final answer
    x = 21,621.74

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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.