Home / 17,531.32-26,231.10-10,485.40

Finding the Fourth Proportional to 17,531.32, 26,231.10 and 10,485.40

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Solution

The fourth proportional to 17,531.32, 26,231.10 and 10,485.40 is: 15,688.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,531.32 : 26,231.10 = 10,485.40 : x
  2. Step 2: Convert to fraction form
    17,531.32/26,231.10 = 10,485.40/x
  3. Step 3: Cross multiply
    17,531.32x = 26,231.10 × 10,485.40
  4. Step 4: Simplify right side
    17,531.32x = 275,043,575.94
  5. Step 5: Solve for x
    x = 275,043,575.94/17,531.32
  6. Step 6: Final answer
    x = 15,688.70

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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.