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Finding the Fourth Proportional to 28,810.06, 43,101.09 and 21,810.29

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Solution

The fourth proportional to 28,810.06, 43,101.09 and 21,810.29 is: 32,629.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,810.06 : 43,101.09 = 21,810.29 : x
  2. Step 2: Convert to fraction form
    28,810.06/43,101.09 = 21,810.29/x
  3. Step 3: Cross multiply
    28,810.06x = 43,101.09 × 21,810.29
  4. Step 4: Simplify right side
    28,810.06x = 940,047,056.71
  5. Step 5: Solve for x
    x = 940,047,056.71/28,810.06
  6. Step 6: Final answer
    x = 32,629.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.