Home / 40,429.48-55,388.58-38,914.36

Finding the Fourth Proportional to 40,429.48, 55,388.58 and 38,914.36

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Solution

The fourth proportional to 40,429.48, 55,388.58 and 38,914.36 is: 53,312.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,429.48 : 55,388.58 = 38,914.36 : x
  2. Step 2: Convert to fraction form
    40,429.48/55,388.58 = 38,914.36/x
  3. Step 3: Cross multiply
    40,429.48x = 55,388.58 × 38,914.36
  4. Step 4: Simplify right side
    40,429.48x = 2,155,411,142.01
  5. Step 5: Solve for x
    x = 2,155,411,142.01/40,429.48
  6. Step 6: Final answer
    x = 53,312.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.