Home / 21,426.68-32,135.16-7,575.68

Finding the Fourth Proportional to 21,426.68, 32,135.16 and 7,575.68

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Solution

The fourth proportional to 21,426.68, 32,135.16 and 7,575.68 is: 11,361.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,426.68 : 32,135.16 = 7,575.68 : x
  2. Step 2: Convert to fraction form
    21,426.68/32,135.16 = 7,575.68/x
  3. Step 3: Cross multiply
    21,426.68x = 32,135.16 × 7,575.68
  4. Step 4: Simplify right side
    21,426.68x = 243,445,688.91
  5. Step 5: Solve for x
    x = 243,445,688.91/21,426.68
  6. Step 6: Final answer
    x = 11,361.80

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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.