Home / 29,557.44-40,779.36-18,378.72

Finding the Fourth Proportional to 29,557.44, 40,779.36 and 18,378.72

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Solution

The fourth proportional to 29,557.44, 40,779.36 and 18,378.72 is: 25,356.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,557.44 : 40,779.36 = 18,378.72 : x
  2. Step 2: Convert to fraction form
    29,557.44/40,779.36 = 18,378.72/x
  3. Step 3: Cross multiply
    29,557.44x = 40,779.36 × 18,378.72
  4. Step 4: Simplify right side
    29,557.44x = 749,472,439.22
  5. Step 5: Solve for x
    x = 749,472,439.22/29,557.44
  6. Step 6: Final answer
    x = 25,356.47

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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.