Home / 26,752.13-36,917.86-15,421.56

Finding the Fourth Proportional to 26,752.13, 36,917.86 and 15,421.56

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Solution

The fourth proportional to 26,752.13, 36,917.86 and 15,421.56 is: 21,281.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,752.13 : 36,917.86 = 15,421.56 : x
  2. Step 2: Convert to fraction form
    26,752.13/36,917.86 = 15,421.56/x
  3. Step 3: Cross multiply
    26,752.13x = 36,917.86 × 15,421.56
  4. Step 4: Simplify right side
    26,752.13x = 569,330,731.36
  5. Step 5: Solve for x
    x = 569,330,731.36/26,752.13
  6. Step 6: Final answer
    x = 21,281.70

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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.