Home / 21,575.16-29,782.08-16,860.96

Finding the Fourth Proportional to 21,575.16, 29,782.08 and 16,860.96

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Solution

The fourth proportional to 21,575.16, 29,782.08 and 16,860.96 is: 23,274.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,575.16 : 29,782.08 = 16,860.96 : x
  2. Step 2: Convert to fraction form
    21,575.16/29,782.08 = 16,860.96/x
  3. Step 3: Cross multiply
    21,575.16x = 29,782.08 × 16,860.96
  4. Step 4: Simplify right side
    21,575.16x = 502,154,459.60
  5. Step 5: Solve for x
    x = 502,154,459.60/21,575.16
  6. Step 6: Final answer
    x = 23,274.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.