Home / 21,904.90-32,857.35-7,114.30

Finding the Fourth Proportional to 21,904.90, 32,857.35 and 7,114.30

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Solution

The fourth proportional to 21,904.90, 32,857.35 and 7,114.30 is: 10,671.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,904.90 : 32,857.35 = 7,114.30 : x
  2. Step 2: Convert to fraction form
    21,904.90/32,857.35 = 7,114.30/x
  3. Step 3: Cross multiply
    21,904.90x = 32,857.35 × 7,114.30
  4. Step 4: Simplify right side
    21,904.90x = 233,757,045.11
  5. Step 5: Solve for x
    x = 233,757,045.11/21,904.90
  6. Step 6: Final answer
    x = 10,671.45

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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.