Home / 39,672.72-54,779.40-29,715.12

Finding the Fourth Proportional to 39,672.72, 54,779.40 and 29,715.12

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Solution

The fourth proportional to 39,672.72, 54,779.40 and 29,715.12 is: 41,030.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,672.72 : 54,779.40 = 29,715.12 : x
  2. Step 2: Convert to fraction form
    39,672.72/54,779.40 = 29,715.12/x
  3. Step 3: Cross multiply
    39,672.72x = 54,779.40 × 29,715.12
  4. Step 4: Simplify right side
    39,672.72x = 1,627,776,444.53
  5. Step 5: Solve for x
    x = 1,627,776,444.53/39,672.72
  6. Step 6: Final answer
    x = 41,030.12

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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.