Home / 35,631.52-53,455.37-18,982.78

Finding the Fourth Proportional to 35,631.52, 53,455.37 and 18,982.78

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Solution

The fourth proportional to 35,631.52, 53,455.37 and 18,982.78 is: 28,478.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,631.52 : 53,455.37 = 18,982.78 : x
  2. Step 2: Convert to fraction form
    35,631.52/53,455.37 = 18,982.78/x
  3. Step 3: Cross multiply
    35,631.52x = 53,455.37 × 18,982.78
  4. Step 4: Simplify right side
    35,631.52x = 1,014,731,528.53
  5. Step 5: Solve for x
    x = 1,014,731,528.53/35,631.52
  6. Step 6: Final answer
    x = 28,478.48

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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.