Home / 21,700.40-32,531.16-11,300.24

Finding the Fourth Proportional to 21,700.40, 32,531.16 and 11,300.24

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Solution

The fourth proportional to 21,700.40, 32,531.16 and 11,300.24 is: 16,940.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,700.40 : 32,531.16 = 11,300.24 : x
  2. Step 2: Convert to fraction form
    21,700.40/32,531.16 = 11,300.24/x
  3. Step 3: Cross multiply
    21,700.40x = 32,531.16 × 11,300.24
  4. Step 4: Simplify right side
    21,700.40x = 367,609,915.48
  5. Step 5: Solve for x
    x = 367,609,915.48/21,700.40
  6. Step 6: Final answer
    x = 16,940.24

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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.