Home / 21,416.68-32,106.55-10,331.16

Finding the Fourth Proportional to 21,416.68, 32,106.55 and 10,331.16

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Solution

The fourth proportional to 21,416.68, 32,106.55 and 10,331.16 is: 15,487.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,416.68 : 32,106.55 = 10,331.16 : x
  2. Step 2: Convert to fraction form
    21,416.68/32,106.55 = 10,331.16/x
  3. Step 3: Cross multiply
    21,416.68x = 32,106.55 × 10,331.16
  4. Step 4: Simplify right side
    21,416.68x = 331,697,905.10
  5. Step 5: Solve for x
    x = 331,697,905.10/21,416.68
  6. Step 6: Final answer
    x = 15,487.83

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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.