Home / 21,560.40-32,340.60-7,706.64

Finding the Fourth Proportional to 21,560.40, 32,340.60 and 7,706.64

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Solution

The fourth proportional to 21,560.40, 32,340.60 and 7,706.64 is: 11,559.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,560.40 : 32,340.60 = 7,706.64 : x
  2. Step 2: Convert to fraction form
    21,560.40/32,340.60 = 7,706.64/x
  3. Step 3: Cross multiply
    21,560.40x = 32,340.60 × 7,706.64
  4. Step 4: Simplify right side
    21,560.40x = 249,237,361.58
  5. Step 5: Solve for x
    x = 249,237,361.58/21,560.40
  6. Step 6: Final answer
    x = 11,559.96

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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.