Home / 21,347.68-29,460.06-12,395.56

Finding the Fourth Proportional to 21,347.68, 29,460.06 and 12,395.56

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Solution

The fourth proportional to 21,347.68, 29,460.06 and 12,395.56 is: 17,106.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,347.68 : 29,460.06 = 12,395.56 : x
  2. Step 2: Convert to fraction form
    21,347.68/29,460.06 = 12,395.56/x
  3. Step 3: Cross multiply
    21,347.68x = 29,460.06 × 12,395.56
  4. Step 4: Simplify right side
    21,347.68x = 365,173,941.33
  5. Step 5: Solve for x
    x = 365,173,941.33/21,347.68
  6. Step 6: Final answer
    x = 17,106.02

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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.