Home / 21,852.60-32,778.90-19,001.40

Finding the Fourth Proportional to 21,852.60, 32,778.90 and 19,001.40

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Solution

The fourth proportional to 21,852.60, 32,778.90 and 19,001.40 is: 28,502.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,852.60 : 32,778.90 = 19,001.40 : x
  2. Step 2: Convert to fraction form
    21,852.60/32,778.90 = 19,001.40/x
  3. Step 3: Cross multiply
    21,852.60x = 32,778.90 × 19,001.40
  4. Step 4: Simplify right side
    21,852.60x = 622,844,990.46
  5. Step 5: Solve for x
    x = 622,844,990.46/21,852.60
  6. Step 6: Final answer
    x = 28,502.10

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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.