Home / 29,245.10-40,358.12-15,816.35

Finding the Fourth Proportional to 29,245.10, 40,358.12 and 15,816.35

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Solution

The fourth proportional to 29,245.10, 40,358.12 and 15,816.35 is: 21,826.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,245.10 : 40,358.12 = 15,816.35 : x
  2. Step 2: Convert to fraction form
    29,245.10/40,358.12 = 15,816.35/x
  3. Step 3: Cross multiply
    29,245.10x = 40,358.12 × 15,816.35
  4. Step 4: Simplify right side
    29,245.10x = 638,318,173.08
  5. Step 5: Solve for x
    x = 638,318,173.08/29,245.10
  6. Step 6: Final answer
    x = 21,826.50

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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.