Home / 21,075.92-29,080.19-12,574.16

Finding the Fourth Proportional to 21,075.92, 29,080.19 and 12,574.16

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Solution

The fourth proportional to 21,075.92, 29,080.19 and 12,574.16 is: 17,349.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,075.92 : 29,080.19 = 12,574.16 : x
  2. Step 2: Convert to fraction form
    21,075.92/29,080.19 = 12,574.16/x
  3. Step 3: Cross multiply
    21,075.92x = 29,080.19 × 12,574.16
  4. Step 4: Simplify right side
    21,075.92x = 365,658,899.02
  5. Step 5: Solve for x
    x = 365,658,899.02/21,075.92
  6. Step 6: Final answer
    x = 17,349.61

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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.