Home / 21,381.62-32,075.91-6,590.54

Finding the Fourth Proportional to 21,381.62, 32,075.91 and 6,590.54

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Solution

The fourth proportional to 21,381.62, 32,075.91 and 6,590.54 is: 9,886.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,381.62 : 32,075.91 = 6,590.54 : x
  2. Step 2: Convert to fraction form
    21,381.62/32,075.91 = 6,590.54/x
  3. Step 3: Cross multiply
    21,381.62x = 32,075.91 × 6,590.54
  4. Step 4: Simplify right side
    21,381.62x = 211,397,567.89
  5. Step 5: Solve for x
    x = 211,397,567.89/21,381.62
  6. Step 6: Final answer
    x = 9,886.88

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1.5x scale

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.