Home / 27,845.16-38,422.87-17,779.49

Finding the Fourth Proportional to 27,845.16, 38,422.87 and 17,779.49

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Solution

The fourth proportional to 27,845.16, 38,422.87 and 17,779.49 is: 24,533.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,845.16 : 38,422.87 = 17,779.49 : x
  2. Step 2: Convert to fraction form
    27,845.16/38,422.87 = 17,779.49/x
  3. Step 3: Cross multiply
    27,845.16x = 38,422.87 × 17,779.49
  4. Step 4: Simplify right side
    27,845.16x = 683,139,032.94
  5. Step 5: Solve for x
    x = 683,139,032.94/27,845.16
  6. Step 6: Final answer
    x = 24,533.49

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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.