Home / 27,376.38-37,779.75-15,438.60

Finding the Fourth Proportional to 27,376.38, 37,779.75 and 15,438.60

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Solution

The fourth proportional to 27,376.38, 37,779.75 and 15,438.60 is: 21,305.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,376.38 : 37,779.75 = 15,438.60 : x
  2. Step 2: Convert to fraction form
    27,376.38/37,779.75 = 15,438.60/x
  3. Step 3: Cross multiply
    27,376.38x = 37,779.75 × 15,438.60
  4. Step 4: Simplify right side
    27,376.38x = 583,266,448.35
  5. Step 5: Solve for x
    x = 583,266,448.35/27,376.38
  6. Step 6: Final answer
    x = 21,305.46

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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.