Home / 20,865.98-31,298.98-6,075.02

Finding the Fourth Proportional to 20,865.98, 31,298.98 and 6,075.02

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Solution

The fourth proportional to 20,865.98, 31,298.98 and 6,075.02 is: 9,112.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,865.98 : 31,298.98 = 6,075.02 : x
  2. Step 2: Convert to fraction form
    20,865.98/31,298.98 = 6,075.02/x
  3. Step 3: Cross multiply
    20,865.98x = 31,298.98 × 6,075.02
  4. Step 4: Simplify right side
    20,865.98x = 190,141,929.48
  5. Step 5: Solve for x
    x = 190,141,929.48/20,865.98
  6. Step 6: Final answer
    x = 9,112.53

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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.