Home / 19,307.60-28,961.40-11,531.60

Finding the Fourth Proportional to 19,307.60, 28,961.40 and 11,531.60

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Solution

The fourth proportional to 19,307.60, 28,961.40 and 11,531.60 is: 17,297.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,307.60 : 28,961.40 = 11,531.60 : x
  2. Step 2: Convert to fraction form
    19,307.60/28,961.40 = 11,531.60/x
  3. Step 3: Cross multiply
    19,307.60x = 28,961.40 × 11,531.60
  4. Step 4: Simplify right side
    19,307.60x = 333,971,280.24
  5. Step 5: Solve for x
    x = 333,971,280.24/19,307.60
  6. Step 6: Final answer
    x = 17,297.40

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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.