Home / 35,826.72-53,666.16-20,990.58

Finding the Fourth Proportional to 35,826.72, 53,666.16 and 20,990.58

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Solution

The fourth proportional to 35,826.72, 53,666.16 and 20,990.58 is: 31,442.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,826.72 : 53,666.16 = 20,990.58 : x
  2. Step 2: Convert to fraction form
    35,826.72/53,666.16 = 20,990.58/x
  3. Step 3: Cross multiply
    35,826.72x = 53,666.16 × 20,990.58
  4. Step 4: Simplify right side
    35,826.72x = 1,126,483,824.77
  5. Step 5: Solve for x
    x = 1,126,483,824.77/35,826.72
  6. Step 6: Final answer
    x = 31,442.56

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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.