Home / 35,971.12-53,957.20-13,785.62

Finding the Fourth Proportional to 35,971.12, 53,957.20 and 13,785.62

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Solution

The fourth proportional to 35,971.12, 53,957.20 and 13,785.62 is: 20,678.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,971.12 : 53,957.20 = 13,785.62 : x
  2. Step 2: Convert to fraction form
    35,971.12/53,957.20 = 13,785.62/x
  3. Step 3: Cross multiply
    35,971.12x = 53,957.20 × 13,785.62
  4. Step 4: Simplify right side
    35,971.12x = 743,833,455.46
  5. Step 5: Solve for x
    x = 743,833,455.46/35,971.12
  6. Step 6: Final answer
    x = 20,678.63

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1.5x scale

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.