Home / 15,455.92-21,325.60-10,429.46

Finding the Fourth Proportional to 15,455.92, 21,325.60 and 10,429.46

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Solution

The fourth proportional to 15,455.92, 21,325.60 and 10,429.46 is: 14,390.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,455.92 : 21,325.60 = 10,429.46 : x
  2. Step 2: Convert to fraction form
    15,455.92/21,325.60 = 10,429.46/x
  3. Step 3: Cross multiply
    15,455.92x = 21,325.60 × 10,429.46
  4. Step 4: Simplify right side
    15,455.92x = 222,414,492.18
  5. Step 5: Solve for x
    x = 222,414,492.18/15,455.92
  6. Step 6: Final answer
    x = 14,390.25

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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.