Home / 26,615.30-36,730.80-15,288.40

Finding the Fourth Proportional to 26,615.30, 36,730.80 and 15,288.40

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Solution

The fourth proportional to 26,615.30, 36,730.80 and 15,288.40 is: 21,098.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,615.30 : 36,730.80 = 15,288.40 : x
  2. Step 2: Convert to fraction form
    26,615.30/36,730.80 = 15,288.40/x
  3. Step 3: Cross multiply
    26,615.30x = 36,730.80 × 15,288.40
  4. Step 4: Simplify right side
    26,615.30x = 561,555,162.72
  5. Step 5: Solve for x
    x = 561,555,162.72/26,615.30
  6. Step 6: Final answer
    x = 21,098.96

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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.