Home / 21,819.67-32,724.89-9,970.08

Finding the Fourth Proportional to 21,819.67, 32,724.89 and 9,970.08

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Solution

The fourth proportional to 21,819.67, 32,724.89 and 9,970.08 is: 14,953.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,819.67 : 32,724.89 = 9,970.08 : x
  2. Step 2: Convert to fraction form
    21,819.67/32,724.89 = 9,970.08/x
  3. Step 3: Cross multiply
    21,819.67x = 32,724.89 × 9,970.08
  4. Step 4: Simplify right side
    21,819.67x = 326,269,721.44
  5. Step 5: Solve for x
    x = 326,269,721.44/21,819.67
  6. Step 6: Final answer
    x = 14,953.01

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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.