Home / 21,210.01-29,268.49-12,256.06

Finding the Fourth Proportional to 21,210.01, 29,268.49 and 12,256.06

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Solution

The fourth proportional to 21,210.01, 29,268.49 and 12,256.06 is: 16,912.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,210.01 : 29,268.49 = 12,256.06 : x
  2. Step 2: Convert to fraction form
    21,210.01/29,268.49 = 12,256.06/x
  3. Step 3: Cross multiply
    21,210.01x = 29,268.49 × 12,256.06
  4. Step 4: Simplify right side
    21,210.01x = 358,716,369.55
  5. Step 5: Solve for x
    x = 358,716,369.55/21,210.01
  6. Step 6: Final answer
    x = 16,912.60

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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.