Home / 39,670.64-59,515.68-13,381.28

Finding the Fourth Proportional to 39,670.64, 59,515.68 and 13,381.28

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Solution

The fourth proportional to 39,670.64, 59,515.68 and 13,381.28 is: 20,075.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,670.64 : 59,515.68 = 13,381.28 : x
  2. Step 2: Convert to fraction form
    39,670.64/59,515.68 = 13,381.28/x
  3. Step 3: Cross multiply
    39,670.64x = 59,515.68 × 13,381.28
  4. Step 4: Simplify right side
    39,670.64x = 796,395,978.47
  5. Step 5: Solve for x
    x = 796,395,978.47/39,670.64
  6. Step 6: Final answer
    x = 20,075.20

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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.