Home / 35,319.40-52,979.10-18,730.60

Finding the Fourth Proportional to 35,319.40, 52,979.10 and 18,730.60

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Solution

The fourth proportional to 35,319.40, 52,979.10 and 18,730.60 is: 28,095.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,319.40 : 52,979.10 = 18,730.60 : x
  2. Step 2: Convert to fraction form
    35,319.40/52,979.10 = 18,730.60/x
  3. Step 3: Cross multiply
    35,319.40x = 52,979.10 × 18,730.60
  4. Step 4: Simplify right side
    35,319.40x = 992,330,330.46
  5. Step 5: Solve for x
    x = 992,330,330.46/35,319.40
  6. Step 6: Final answer
    x = 28,095.90

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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.