Home / 42,623.76-63,957.60-18,947.64

Finding the Fourth Proportional to 42,623.76, 63,957.60 and 18,947.64

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Solution

The fourth proportional to 42,623.76, 63,957.60 and 18,947.64 is: 28,431.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,623.76 : 63,957.60 = 18,947.64 : x
  2. Step 2: Convert to fraction form
    42,623.76/63,957.60 = 18,947.64/x
  3. Step 3: Cross multiply
    42,623.76x = 63,957.60 × 18,947.64
  4. Step 4: Simplify right side
    42,623.76x = 1,211,845,580.06
  5. Step 5: Solve for x
    x = 1,211,845,580.06/42,623.76
  6. Step 6: Final answer
    x = 28,431.22

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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.