Home / 21,459.48-32,170.62-8,302.80

Finding the Fourth Proportional to 21,459.48, 32,170.62 and 8,302.80

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Solution

The fourth proportional to 21,459.48, 32,170.62 and 8,302.80 is: 12,447.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,459.48 : 32,170.62 = 8,302.80 : x
  2. Step 2: Convert to fraction form
    21,459.48/32,170.62 = 8,302.80/x
  3. Step 3: Cross multiply
    21,459.48x = 32,170.62 × 8,302.80
  4. Step 4: Simplify right side
    21,459.48x = 267,106,223.74
  5. Step 5: Solve for x
    x = 267,106,223.74/21,459.48
  6. Step 6: Final answer
    x = 12,447.00

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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.