Home / 35,815.34-53,649.17-20,979.27

Finding the Fourth Proportional to 35,815.34, 53,649.17 and 20,979.27

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Solution

The fourth proportional to 35,815.34, 53,649.17 and 20,979.27 is: 31,425.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,815.34 : 53,649.17 = 20,979.27 : x
  2. Step 2: Convert to fraction form
    35,815.34/53,649.17 = 20,979.27/x
  3. Step 3: Cross multiply
    35,815.34x = 53,649.17 × 20,979.27
  4. Step 4: Simplify right side
    35,815.34x = 1,125,520,422.71
  5. Step 5: Solve for x
    x = 1,125,520,422.71/35,815.34
  6. Step 6: Final answer
    x = 31,425.65

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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.