Home / 31,200.40-43,056.60-17,053.20

Finding the Fourth Proportional to 31,200.40, 43,056.60 and 17,053.20

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Solution

The fourth proportional to 31,200.40, 43,056.60 and 17,053.20 is: 23,533.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,200.40 : 43,056.60 = 17,053.20 : x
  2. Step 2: Convert to fraction form
    31,200.40/43,056.60 = 17,053.20/x
  3. Step 3: Cross multiply
    31,200.40x = 43,056.60 × 17,053.20
  4. Step 4: Simplify right side
    31,200.40x = 734,252,811.12
  5. Step 5: Solve for x
    x = 734,252,811.12/31,200.40
  6. Step 6: Final answer
    x = 23,533.44

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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.