Home / 21,335,015.72-29,442,321.05-11,545,459.81

Finding the Fourth Proportional to 21,335,015.72, 29,442,321.05 and 11,545,459.81

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Solution

The fourth proportional to 21,335,015.72, 29,442,321.05 and 11,545,459.81 is: 15,932,734.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,335,015.72 : 29,442,321.05 = 11,545,459.81 : x
  2. Step 2: Convert to fraction form
    21,335,015.72/29,442,321.05 = 11,545,459.81/x
  3. Step 3: Cross multiply
    21,335,015.72x = 29,442,321.05 × 11,545,459.81
  4. Step 4: Simplify right side
    21,335,015.72x = 339,925,134,264,558.88
  5. Step 5: Solve for x
    x = 339,925,134,264,558.88/21,335,015.72
  6. Step 6: Final answer
    x = 15,932,734.18

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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.