Home / 26,271.60-39,311.40-19,359.60

Finding the Fourth Proportional to 26,271.60, 39,311.40 and 19,359.60

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Solution

The fourth proportional to 26,271.60, 39,311.40 and 19,359.60 is: 28,968.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,271.60 : 39,311.40 = 19,359.60 : x
  2. Step 2: Convert to fraction form
    26,271.60/39,311.40 = 19,359.60/x
  3. Step 3: Cross multiply
    26,271.60x = 39,311.40 × 19,359.60
  4. Step 4: Simplify right side
    26,271.60x = 761,052,979.44
  5. Step 5: Solve for x
    x = 761,052,979.44/26,271.60
  6. Step 6: Final answer
    x = 28,968.66

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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.