Home / 42,428.58-63,664.74-17,487.06

Finding the Fourth Proportional to 42,428.58, 63,664.74 and 17,487.06

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Solution

The fourth proportional to 42,428.58, 63,664.74 and 17,487.06 is: 26,239.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,428.58 : 63,664.74 = 17,487.06 : x
  2. Step 2: Convert to fraction form
    42,428.58/63,664.74 = 17,487.06/x
  3. Step 3: Cross multiply
    42,428.58x = 63,664.74 × 17,487.06
  4. Step 4: Simplify right side
    42,428.58x = 1,113,309,128.26
  5. Step 5: Solve for x
    x = 1,113,309,128.26/42,428.58
  6. Step 6: Final answer
    x = 26,239.60

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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.