Home / 35,957.52-53,900.64-21,146.40

Finding the Fourth Proportional to 35,957.52, 53,900.64 and 21,146.40

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Solution

The fourth proportional to 35,957.52, 53,900.64 and 21,146.40 is: 31,698.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,957.52 : 53,900.64 = 21,146.40 : x
  2. Step 2: Convert to fraction form
    35,957.52/53,900.64 = 21,146.40/x
  3. Step 3: Cross multiply
    35,957.52x = 53,900.64 × 21,146.40
  4. Step 4: Simplify right side
    35,957.52x = 1,139,804,493.70
  5. Step 5: Solve for x
    x = 1,139,804,493.70/35,957.52
  6. Step 6: Final answer
    x = 31,698.64

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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.