Home / 35,855.79-53,781.62-13,671.40

Finding the Fourth Proportional to 35,855.79, 53,781.62 and 13,671.40

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Solution

The fourth proportional to 35,855.79, 53,781.62 and 13,671.40 is: 20,506.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,855.79 : 53,781.62 = 13,671.40 : x
  2. Step 2: Convert to fraction form
    35,855.79/53,781.62 = 13,671.40/x
  3. Step 3: Cross multiply
    35,855.79x = 53,781.62 × 13,671.40
  4. Step 4: Simplify right side
    35,855.79x = 735,270,039.67
  5. Step 5: Solve for x
    x = 735,270,039.67/35,855.79
  6. Step 6: Final answer
    x = 20,506.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.