Home / 21,656.87-32,485.26-15,771.18

Finding the Fourth Proportional to 21,656.87, 32,485.26 and 15,771.18

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Solution

The fourth proportional to 21,656.87, 32,485.26 and 15,771.18 is: 23,656.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,656.87 : 32,485.26 = 15,771.18 : x
  2. Step 2: Convert to fraction form
    21,656.87/32,485.26 = 15,771.18/x
  3. Step 3: Cross multiply
    21,656.87x = 32,485.26 × 15,771.18
  4. Step 4: Simplify right side
    21,656.87x = 512,330,882.81
  5. Step 5: Solve for x
    x = 512,330,882.81/21,656.87
  6. Step 6: Final answer
    x = 23,656.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.