Home / 26,486.81-36,555.05-15,308.81

Finding the Fourth Proportional to 26,486.81, 36,555.05 and 15,308.81

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Solution

The fourth proportional to 26,486.81, 36,555.05 and 15,308.81 is: 21,128.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,486.81 : 36,555.05 = 15,308.81 : x
  2. Step 2: Convert to fraction form
    26,486.81/36,555.05 = 15,308.81/x
  3. Step 3: Cross multiply
    26,486.81x = 36,555.05 × 15,308.81
  4. Step 4: Simplify right side
    26,486.81x = 559,614,329.83
  5. Step 5: Solve for x
    x = 559,614,329.83/26,486.81
  6. Step 6: Final answer
    x = 21,128.04

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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.