Home / 39,754.36-59,578.62-21,030.40

Finding the Fourth Proportional to 39,754.36, 59,578.62 and 21,030.40

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Solution

The fourth proportional to 39,754.36, 59,578.62 and 21,030.40 is: 31,517.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,754.36 : 59,578.62 = 21,030.40 : x
  2. Step 2: Convert to fraction form
    39,754.36/59,578.62 = 21,030.40/x
  3. Step 3: Cross multiply
    39,754.36x = 59,578.62 × 21,030.40
  4. Step 4: Simplify right side
    39,754.36x = 1,252,962,210.05
  5. Step 5: Solve for x
    x = 1,252,962,210.05/39,754.36
  6. Step 6: Final answer
    x = 31,517.60

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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.