Home / 23,715.48-32,742.63-15,221.28

Finding the Fourth Proportional to 23,715.48, 32,742.63 and 15,221.28

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Solution

The fourth proportional to 23,715.48, 32,742.63 and 15,221.28 is: 21,015.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,715.48 : 32,742.63 = 15,221.28 : x
  2. Step 2: Convert to fraction form
    23,715.48/32,742.63 = 15,221.28/x
  3. Step 3: Cross multiply
    23,715.48x = 32,742.63 × 15,221.28
  4. Step 4: Simplify right side
    23,715.48x = 498,384,739.17
  5. Step 5: Solve for x
    x = 498,384,739.17/23,715.48
  6. Step 6: Final answer
    x = 21,015.17

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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.