Home / 28,416.42-42,610.05-10,639.76

Finding the Fourth Proportional to 28,416.42, 42,610.05 and 10,639.76

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Solution

The fourth proportional to 28,416.42, 42,610.05 and 10,639.76 is: 15,954.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,416.42 : 42,610.05 = 10,639.76 : x
  2. Step 2: Convert to fraction form
    28,416.42/42,610.05 = 10,639.76/x
  3. Step 3: Cross multiply
    28,416.42x = 42,610.05 × 10,639.76
  4. Step 4: Simplify right side
    28,416.42x = 453,360,492.54
  5. Step 5: Solve for x
    x = 453,360,492.54/28,416.42
  6. Step 6: Final answer
    x = 15,954.17

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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.