Home / 32,715.20-45,131.88-19,277.28

Finding the Fourth Proportional to 32,715.20, 45,131.88 and 19,277.28

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Solution

The fourth proportional to 32,715.20, 45,131.88 and 19,277.28 is: 26,593.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,715.20 : 45,131.88 = 19,277.28 : x
  2. Step 2: Convert to fraction form
    32,715.20/45,131.88 = 19,277.28/x
  3. Step 3: Cross multiply
    32,715.20x = 45,131.88 × 19,277.28
  4. Step 4: Simplify right side
    32,715.20x = 870,019,887.69
  5. Step 5: Solve for x
    x = 870,019,887.69/32,715.20
  6. Step 6: Final answer
    x = 26,593.75

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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.