Home / 21,051.87-29,052.29-11,492.32

Finding the Fourth Proportional to 21,051.87, 29,052.29 and 11,492.32

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Solution

The fourth proportional to 21,051.87, 29,052.29 and 11,492.32 is: 15,859.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,051.87 : 29,052.29 = 11,492.32 : x
  2. Step 2: Convert to fraction form
    21,051.87/29,052.29 = 11,492.32/x
  3. Step 3: Cross multiply
    21,051.87x = 29,052.29 × 11,492.32
  4. Step 4: Simplify right side
    21,051.87x = 333,878,213.41
  5. Step 5: Solve for x
    x = 333,878,213.41/21,051.87
  6. Step 6: Final answer
    x = 15,859.79

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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.