Home / 21,075.66-31,613.58-8,592.35

Finding the Fourth Proportional to 21,075.66, 31,613.58 and 8,592.35

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Solution

The fourth proportional to 21,075.66, 31,613.58 and 8,592.35 is: 12,888.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,075.66 : 31,613.58 = 8,592.35 : x
  2. Step 2: Convert to fraction form
    21,075.66/31,613.58 = 8,592.35/x
  3. Step 3: Cross multiply
    21,075.66x = 31,613.58 × 8,592.35
  4. Step 4: Simplify right side
    21,075.66x = 271,634,786.05
  5. Step 5: Solve for x
    x = 271,634,786.05/21,075.66
  6. Step 6: Final answer
    x = 12,888.55

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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.