Home / 21,946.80-32,891.40-15,783.60

Finding the Fourth Proportional to 21,946.80, 32,891.40 and 15,783.60

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Solution

The fourth proportional to 21,946.80, 32,891.40 and 15,783.60 is: 23,654.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,946.80 : 32,891.40 = 15,783.60 : x
  2. Step 2: Convert to fraction form
    21,946.80/32,891.40 = 15,783.60/x
  3. Step 3: Cross multiply
    21,946.80x = 32,891.40 × 15,783.60
  4. Step 4: Simplify right side
    21,946.80x = 519,144,701.04
  5. Step 5: Solve for x
    x = 519,144,701.04/21,946.80
  6. Step 6: Final answer
    x = 23,654.69

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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.