Home / 27,317.51-37,698.87-15,381.28

Finding the Fourth Proportional to 27,317.51, 37,698.87 and 15,381.28

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Solution

The fourth proportional to 27,317.51, 37,698.87 and 15,381.28 is: 21,226.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,317.51 : 37,698.87 = 15,381.28 : x
  2. Step 2: Convert to fraction form
    27,317.51/37,698.87 = 15,381.28/x
  3. Step 3: Cross multiply
    27,317.51x = 37,698.87 × 15,381.28
  4. Step 4: Simplify right side
    27,317.51x = 579,856,875.15
  5. Step 5: Solve for x
    x = 579,856,875.15/27,317.51
  6. Step 6: Final answer
    x = 21,226.56

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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.