Home / 21,605.65-29,816.10-12,045.26

Finding the Fourth Proportional to 21,605.65, 29,816.10 and 12,045.26

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Solution

The fourth proportional to 21,605.65, 29,816.10 and 12,045.26 is: 16,622.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,605.65 : 29,816.10 = 12,045.26 : x
  2. Step 2: Convert to fraction form
    21,605.65/29,816.10 = 12,045.26/x
  3. Step 3: Cross multiply
    21,605.65x = 29,816.10 × 12,045.26
  4. Step 4: Simplify right side
    21,605.65x = 359,142,751.23
  5. Step 5: Solve for x
    x = 359,142,751.23/21,605.65
  6. Step 6: Final answer
    x = 16,622.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.