Home / 39,603.78-59,412.33-14,643.90

Finding the Fourth Proportional to 39,603.78, 59,412.33 and 14,643.90

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Solution

The fourth proportional to 39,603.78, 59,412.33 and 14,643.90 is: 21,968.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,603.78 : 59,412.33 = 14,643.90 : x
  2. Step 2: Convert to fraction form
    39,603.78/59,412.33 = 14,643.90/x
  3. Step 3: Cross multiply
    39,603.78x = 59,412.33 × 14,643.90
  4. Step 4: Simplify right side
    39,603.78x = 870,028,219.29
  5. Step 5: Solve for x
    x = 870,028,219.29/39,603.78
  6. Step 6: Final answer
    x = 21,968.31

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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.