Home / 21,376.42-32,070.54-8,902.30

Finding the Fourth Proportional to 21,376.42, 32,070.54 and 8,902.30

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Solution

The fourth proportional to 21,376.42, 32,070.54 and 8,902.30 is: 13,355.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,376.42 : 32,070.54 = 8,902.30 : x
  2. Step 2: Convert to fraction form
    21,376.42/32,070.54 = 8,902.30/x
  3. Step 3: Cross multiply
    21,376.42x = 32,070.54 × 8,902.30
  4. Step 4: Simplify right side
    21,376.42x = 285,501,568.24
  5. Step 5: Solve for x
    x = 285,501,568.24/21,376.42
  6. Step 6: Final answer
    x = 13,355.91

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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.