Home / 28,173.60-38,875.50-15,598.32

Finding the Fourth Proportional to 28,173.60, 38,875.50 and 15,598.32

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Solution

The fourth proportional to 28,173.60, 38,875.50 and 15,598.32 is: 21,523.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,173.60 : 38,875.50 = 15,598.32 : x
  2. Step 2: Convert to fraction form
    28,173.60/38,875.50 = 15,598.32/x
  3. Step 3: Cross multiply
    28,173.60x = 38,875.50 × 15,598.32
  4. Step 4: Simplify right side
    28,173.60x = 606,392,489.16
  5. Step 5: Solve for x
    x = 606,392,489.16/28,173.60
  6. Step 6: Final answer
    x = 21,523.43

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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.