Home / 21,569.94-32,161.35-21,176.28

Finding the Fourth Proportional to 21,569.94, 32,161.35 and 21,176.28

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Solution

The fourth proportional to 21,569.94, 32,161.35 and 21,176.28 is: 31,574.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,569.94 : 32,161.35 = 21,176.28 : x
  2. Step 2: Convert to fraction form
    21,569.94/32,161.35 = 21,176.28/x
  3. Step 3: Cross multiply
    21,569.94x = 32,161.35 × 21,176.28
  4. Step 4: Simplify right side
    21,569.94x = 681,057,752.78
  5. Step 5: Solve for x
    x = 681,057,752.78/21,569.94
  6. Step 6: Final answer
    x = 31,574.39

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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.