Home / 21,905.04-32,862.24-7,865.76

Finding the Fourth Proportional to 21,905.04, 32,862.24 and 7,865.76

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Solution

The fourth proportional to 21,905.04, 32,862.24 and 7,865.76 is: 11,800.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,905.04 : 32,862.24 = 7,865.76 : x
  2. Step 2: Convert to fraction form
    21,905.04/32,862.24 = 7,865.76/x
  3. Step 3: Cross multiply
    21,905.04x = 32,862.24 × 7,865.76
  4. Step 4: Simplify right side
    21,905.04x = 258,486,492.90
  5. Step 5: Solve for x
    x = 258,486,492.90/21,905.04
  6. Step 6: Final answer
    x = 11,800.32

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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.