Home / 35,390.58-53,027.52-20,557.86

Finding the Fourth Proportional to 35,390.58, 53,027.52 and 20,557.86

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Solution

The fourth proportional to 35,390.58, 53,027.52 and 20,557.86 is: 30,802.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,390.58 : 53,027.52 = 20,557.86 : x
  2. Step 2: Convert to fraction form
    35,390.58/53,027.52 = 20,557.86/x
  3. Step 3: Cross multiply
    35,390.58x = 53,027.52 × 20,557.86
  4. Step 4: Simplify right side
    35,390.58x = 1,090,132,332.31
  5. Step 5: Solve for x
    x = 1,090,132,332.31/35,390.58
  6. Step 6: Final answer
    x = 30,802.90

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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.