Home / 21,385.63-32,075.43-7,345.43

Finding the Fourth Proportional to 21,385.63, 32,075.43 and 7,345.43

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Solution

The fourth proportional to 21,385.63, 32,075.43 and 7,345.43 is: 11,017.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,385.63 : 32,075.43 = 7,345.43 : x
  2. Step 2: Convert to fraction form
    21,385.63/32,075.43 = 7,345.43/x
  3. Step 3: Cross multiply
    21,385.63x = 32,075.43 × 7,345.43
  4. Step 4: Simplify right side
    21,385.63x = 235,607,825.78
  5. Step 5: Solve for x
    x = 235,607,825.78/21,385.63
  6. Step 6: Final answer
    x = 11,017.11

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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.