Home / 21,552.48-32,170.75-19,969.38

Finding the Fourth Proportional to 21,552.48, 32,170.75 and 19,969.38

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Solution

The fourth proportional to 21,552.48, 32,170.75 and 19,969.38 is: 29,807.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,552.48 : 32,170.75 = 19,969.38 : x
  2. Step 2: Convert to fraction form
    21,552.48/32,170.75 = 19,969.38/x
  3. Step 3: Cross multiply
    21,552.48x = 32,170.75 × 19,969.38
  4. Step 4: Simplify right side
    21,552.48x = 642,429,931.64
  5. Step 5: Solve for x
    x = 642,429,931.64/21,552.48
  6. Step 6: Final answer
    x = 29,807.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.