Home / 21,075.61-31,613.42-6,294.91

Finding the Fourth Proportional to 21,075.61, 31,613.42 and 6,294.91

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Solution

The fourth proportional to 21,075.61, 31,613.42 and 6,294.91 is: 9,442.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,075.61 : 31,613.42 = 6,294.91 : x
  2. Step 2: Convert to fraction form
    21,075.61/31,613.42 = 6,294.91/x
  3. Step 3: Cross multiply
    21,075.61x = 31,613.42 × 6,294.91
  4. Step 4: Simplify right side
    21,075.61x = 199,003,633.69
  5. Step 5: Solve for x
    x = 199,003,633.69/21,075.61
  6. Step 6: Final answer
    x = 9,442.37

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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.