Home / 21,530.48-32,282.28-9,681.92

Finding the Fourth Proportional to 21,530.48, 32,282.28 and 9,681.92

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Solution

The fourth proportional to 21,530.48, 32,282.28 and 9,681.92 is: 14,516.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,530.48 : 32,282.28 = 9,681.92 : x
  2. Step 2: Convert to fraction form
    21,530.48/32,282.28 = 9,681.92/x
  3. Step 3: Cross multiply
    21,530.48x = 32,282.28 × 9,681.92
  4. Step 4: Simplify right side
    21,530.48x = 312,554,452.38
  5. Step 5: Solve for x
    x = 312,554,452.38/21,530.48
  6. Step 6: Final answer
    x = 14,516.84

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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.