Home / 42,884.56-64,310.10-14,415.76

Finding the Fourth Proportional to 42,884.56, 64,310.10 and 14,415.76

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Solution

The fourth proportional to 42,884.56, 64,310.10 and 14,415.76 is: 21,618.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,884.56 : 64,310.10 = 14,415.76 : x
  2. Step 2: Convert to fraction form
    42,884.56/64,310.10 = 14,415.76/x
  3. Step 3: Cross multiply
    42,884.56x = 64,310.10 × 14,415.76
  4. Step 4: Simplify right side
    42,884.56x = 927,078,967.18
  5. Step 5: Solve for x
    x = 927,078,967.18/42,884.56
  6. Step 6: Final answer
    x = 21,618.01

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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.