Home / 21,851.60-32,777.40-19,259.60

Finding the Fourth Proportional to 21,851.60, 32,777.40 and 19,259.60

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Solution

The fourth proportional to 21,851.60, 32,777.40 and 19,259.60 is: 28,889.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,851.60 : 32,777.40 = 19,259.60 : x
  2. Step 2: Convert to fraction form
    21,851.60/32,777.40 = 19,259.60/x
  3. Step 3: Cross multiply
    21,851.60x = 32,777.40 × 19,259.60
  4. Step 4: Simplify right side
    21,851.60x = 631,279,613.04
  5. Step 5: Solve for x
    x = 631,279,613.04/21,851.60
  6. Step 6: Final answer
    x = 28,889.40

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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.