Home / 28,969.60-39,980.64-17,026.96

Finding the Fourth Proportional to 28,969.60, 39,980.64 and 17,026.96

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Solution

The fourth proportional to 28,969.60, 39,980.64 and 17,026.96 is: 23,498.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,969.60 : 39,980.64 = 17,026.96 : x
  2. Step 2: Convert to fraction form
    28,969.60/39,980.64 = 17,026.96/x
  3. Step 3: Cross multiply
    28,969.60x = 39,980.64 × 17,026.96
  4. Step 4: Simplify right side
    28,969.60x = 680,748,758.05
  5. Step 5: Solve for x
    x = 680,748,758.05/28,969.60
  6. Step 6: Final answer
    x = 23,498.73

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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.