Home / 21,904.30-32,856.45-15,222.70

Finding the Fourth Proportional to 21,904.30, 32,856.45 and 15,222.70

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Solution

The fourth proportional to 21,904.30, 32,856.45 and 15,222.70 is: 22,834.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,904.30 : 32,856.45 = 15,222.70 : x
  2. Step 2: Convert to fraction form
    21,904.30/32,856.45 = 15,222.70/x
  3. Step 3: Cross multiply
    21,904.30x = 32,856.45 × 15,222.70
  4. Step 4: Simplify right side
    21,904.30x = 500,163,881.42
  5. Step 5: Solve for x
    x = 500,163,881.42/21,904.30
  6. Step 6: Final answer
    x = 22,834.05

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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.