Home / 26,710.40-40,069.20-9,185.60

Finding the Fourth Proportional to 26,710.40, 40,069.20 and 9,185.60

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Solution

The fourth proportional to 26,710.40, 40,069.20 and 9,185.60 is: 13,779.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,710.40 : 40,069.20 = 9,185.60 : x
  2. Step 2: Convert to fraction form
    26,710.40/40,069.20 = 9,185.60/x
  3. Step 3: Cross multiply
    26,710.40x = 40,069.20 × 9,185.60
  4. Step 4: Simplify right side
    26,710.40x = 368,059,643.52
  5. Step 5: Solve for x
    x = 368,059,643.52/26,710.40
  6. Step 6: Final answer
    x = 13,779.64

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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.