Home / 21,566.94-32,156.88-21,173.28

Finding the Fourth Proportional to 21,566.94, 32,156.88 and 21,173.28

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Solution

The fourth proportional to 21,566.94, 32,156.88 and 21,173.28 is: 31,569.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,566.94 : 32,156.88 = 21,173.28 : x
  2. Step 2: Convert to fraction form
    21,566.94/32,156.88 = 21,173.28/x
  3. Step 3: Cross multiply
    21,566.94x = 32,156.88 × 21,173.28
  4. Step 4: Simplify right side
    21,566.94x = 680,866,624.17
  5. Step 5: Solve for x
    x = 680,866,624.17/21,566.94
  6. Step 6: Final answer
    x = 31,569.92

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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.