Home / 29,416.37-40,603.48-19,990.40

Finding the Fourth Proportional to 29,416.37, 40,603.48 and 19,990.40

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Solution

The fourth proportional to 29,416.37, 40,603.48 and 19,990.40 is: 27,592.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,416.37 : 40,603.48 = 19,990.40 : x
  2. Step 2: Convert to fraction form
    29,416.37/40,603.48 = 19,990.40/x
  3. Step 3: Cross multiply
    29,416.37x = 40,603.48 × 19,990.40
  4. Step 4: Simplify right side
    29,416.37x = 811,679,553.60
  5. Step 5: Solve for x
    x = 811,679,553.60/29,416.37
  6. Step 6: Final answer
    x = 27,592.79

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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.