Home / 42,907.84-64,360.94-13,325.02

Finding the Fourth Proportional to 42,907.84, 64,360.94 and 13,325.02

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Solution

The fourth proportional to 42,907.84, 64,360.94 and 13,325.02 is: 19,987.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,907.84 : 64,360.94 = 13,325.02 : x
  2. Step 2: Convert to fraction form
    42,907.84/64,360.94 = 13,325.02/x
  3. Step 3: Cross multiply
    42,907.84x = 64,360.94 × 13,325.02
  4. Step 4: Simplify right side
    42,907.84x = 857,610,490.91
  5. Step 5: Solve for x
    x = 857,610,490.91/42,907.84
  6. Step 6: Final answer
    x = 19,987.27

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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.