Home / 21,301.08-29,395.98-11,870.22

Finding the Fourth Proportional to 21,301.08, 29,395.98 and 11,870.22

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Solution

The fourth proportional to 21,301.08, 29,395.98 and 11,870.22 is: 16,381.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,301.08 : 29,395.98 = 11,870.22 : x
  2. Step 2: Convert to fraction form
    21,301.08/29,395.98 = 11,870.22/x
  3. Step 3: Cross multiply
    21,301.08x = 29,395.98 × 11,870.22
  4. Step 4: Simplify right side
    21,301.08x = 348,936,749.72
  5. Step 5: Solve for x
    x = 348,936,749.72/21,301.08
  6. Step 6: Final answer
    x = 16,381.18

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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.