Home / 26,767.78-36,938.54-15,437.75

Finding the Fourth Proportional to 26,767.78, 36,938.54 and 15,437.75

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Solution

The fourth proportional to 26,767.78, 36,938.54 and 15,437.75 is: 21,303.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,767.78 : 36,938.54 = 15,437.75 : x
  2. Step 2: Convert to fraction form
    26,767.78/36,938.54 = 15,437.75/x
  3. Step 3: Cross multiply
    26,767.78x = 36,938.54 × 15,437.75
  4. Step 4: Simplify right side
    26,767.78x = 570,247,761.19
  5. Step 5: Solve for x
    x = 570,247,761.19/26,767.78
  6. Step 6: Final answer
    x = 21,303.52

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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.