Home / 21,612.15-32,419.80-7,570.62

Finding the Fourth Proportional to 21,612.15, 32,419.80 and 7,570.62

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Solution

The fourth proportional to 21,612.15, 32,419.80 and 7,570.62 is: 11,356.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,612.15 : 32,419.80 = 7,570.62 : x
  2. Step 2: Convert to fraction form
    21,612.15/32,419.80 = 7,570.62/x
  3. Step 3: Cross multiply
    21,612.15x = 32,419.80 × 7,570.62
  4. Step 4: Simplify right side
    21,612.15x = 245,437,986.28
  5. Step 5: Solve for x
    x = 245,437,986.28/21,612.15
  6. Step 6: Final answer
    x = 11,356.48

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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.