Home / 40,027.53-55,237.49-21,878.17

Finding the Fourth Proportional to 40,027.53, 55,237.49 and 21,878.17

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Solution

The fourth proportional to 40,027.53, 55,237.49 and 21,878.17 is: 30,191.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,027.53 : 55,237.49 = 21,878.17 : x
  2. Step 2: Convert to fraction form
    40,027.53/55,237.49 = 21,878.17/x
  3. Step 3: Cross multiply
    40,027.53x = 55,237.49 × 21,878.17
  4. Step 4: Simplify right side
    40,027.53x = 1,208,495,154.22
  5. Step 5: Solve for x
    x = 1,208,495,154.22/40,027.53
  6. Step 6: Final answer
    x = 30,191.60

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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.