Home / 27,317.89-37,699.40-15,381.66

Finding the Fourth Proportional to 27,317.89, 37,699.40 and 15,381.66

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Solution

The fourth proportional to 27,317.89, 37,699.40 and 15,381.66 is: 21,227.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,317.89 : 37,699.40 = 15,381.66 : x
  2. Step 2: Convert to fraction form
    27,317.89/37,699.40 = 15,381.66/x
  3. Step 3: Cross multiply
    27,317.89x = 37,699.40 × 15,381.66
  4. Step 4: Simplify right side
    27,317.89x = 579,879,353.00
  5. Step 5: Solve for x
    x = 579,879,353.00/27,317.89
  6. Step 6: Final answer
    x = 21,227.09

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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.