Home / 21,242.06-29,314.08-11,810.64

Finding the Fourth Proportional to 21,242.06, 29,314.08 and 11,810.64

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Solution

The fourth proportional to 21,242.06, 29,314.08 and 11,810.64 is: 16,298.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,242.06 : 29,314.08 = 11,810.64 : x
  2. Step 2: Convert to fraction form
    21,242.06/29,314.08 = 11,810.64/x
  3. Step 3: Cross multiply
    21,242.06x = 29,314.08 × 11,810.64
  4. Step 4: Simplify right side
    21,242.06x = 346,218,045.81
  5. Step 5: Solve for x
    x = 346,218,045.81/21,242.06
  6. Step 6: Final answer
    x = 16,298.70

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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.