Home / 28,035.42-38,688.57-15,288.56

Finding the Fourth Proportional to 28,035.42, 38,688.57 and 15,288.56

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Solution

The fourth proportional to 28,035.42, 38,688.57 and 15,288.56 is: 21,098.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,035.42 : 38,688.57 = 15,288.56 : x
  2. Step 2: Convert to fraction form
    28,035.42/38,688.57 = 15,288.56/x
  3. Step 3: Cross multiply
    28,035.42x = 38,688.57 × 15,288.56
  4. Step 4: Simplify right side
    28,035.42x = 591,492,523.76
  5. Step 5: Solve for x
    x = 591,492,523.76/28,035.42
  6. Step 6: Final answer
    x = 21,098.04

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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.