Home / 29,099.15-40,139.93-18,339.80

Finding the Fourth Proportional to 29,099.15, 40,139.93 and 18,339.80

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Solution

The fourth proportional to 29,099.15, 40,139.93 and 18,339.80 is: 25,298.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,099.15 : 40,139.93 = 18,339.80 : x
  2. Step 2: Convert to fraction form
    29,099.15/40,139.93 = 18,339.80/x
  3. Step 3: Cross multiply
    29,099.15x = 40,139.93 × 18,339.80
  4. Step 4: Simplify right side
    29,099.15x = 736,158,288.21
  5. Step 5: Solve for x
    x = 736,158,288.21/29,099.15
  6. Step 6: Final answer
    x = 25,298.27

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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.