Home / 35,981.10-53,988.30-13,787.10

Finding the Fourth Proportional to 35,981.10, 53,988.30 and 13,787.10

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Solution

The fourth proportional to 35,981.10, 53,988.30 and 13,787.10 is: 20,687.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,981.10 : 53,988.30 = 13,787.10 : x
  2. Step 2: Convert to fraction form
    35,981.10/53,988.30 = 13,787.10/x
  3. Step 3: Cross multiply
    35,981.10x = 53,988.30 × 13,787.10
  4. Step 4: Simplify right side
    35,981.10x = 744,342,090.93
  5. Step 5: Solve for x
    x = 744,342,090.93/35,981.10
  6. Step 6: Final answer
    x = 20,687.03

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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.