Home / 21,385.31-32,075.89-6,590.25

Finding the Fourth Proportional to 21,385.31, 32,075.89 and 6,590.25

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Solution

The fourth proportional to 21,385.31, 32,075.89 and 6,590.25 is: 9,884.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,385.31 : 32,075.89 = 6,590.25 : x
  2. Step 2: Convert to fraction form
    21,385.31/32,075.89 = 6,590.25/x
  3. Step 3: Cross multiply
    21,385.31x = 32,075.89 × 6,590.25
  4. Step 4: Simplify right side
    21,385.31x = 211,388,134.07
  5. Step 5: Solve for x
    x = 211,388,134.07/21,385.31
  6. Step 6: Final answer
    x = 9,884.74

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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.