Home / 21,543.84-32,304.24-12,662.28

Finding the Fourth Proportional to 21,543.84, 32,304.24 and 12,662.28

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Solution

The fourth proportional to 21,543.84, 32,304.24 and 12,662.28 is: 18,986.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,543.84 : 32,304.24 = 12,662.28 : x
  2. Step 2: Convert to fraction form
    21,543.84/32,304.24 = 12,662.28/x
  3. Step 3: Cross multiply
    21,543.84x = 32,304.24 × 12,662.28
  4. Step 4: Simplify right side
    21,543.84x = 409,045,332.07
  5. Step 5: Solve for x
    x = 409,045,332.07/21,543.84
  6. Step 6: Final answer
    x = 18,986.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.