Home / 26,289.81-36,261.90-15,671.25

Finding the Fourth Proportional to 26,289.81, 36,261.90 and 15,671.25

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Solution

The fourth proportional to 26,289.81, 36,261.90 and 15,671.25 is: 21,615.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,289.81 : 36,261.90 = 15,671.25 : x
  2. Step 2: Convert to fraction form
    26,289.81/36,261.90 = 15,671.25/x
  3. Step 3: Cross multiply
    26,289.81x = 36,261.90 × 15,671.25
  4. Step 4: Simplify right side
    26,289.81x = 568,269,300.38
  5. Step 5: Solve for x
    x = 568,269,300.38/26,289.81
  6. Step 6: Final answer
    x = 21,615.57

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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.