Home / 28,244.68-38,977.14-15,669.16

Finding the Fourth Proportional to 28,244.68, 38,977.14 and 15,669.16

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Solution

The fourth proportional to 28,244.68, 38,977.14 and 15,669.16 is: 21,623.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,244.68 : 38,977.14 = 15,669.16 : x
  2. Step 2: Convert to fraction form
    28,244.68/38,977.14 = 15,669.16/x
  3. Step 3: Cross multiply
    28,244.68x = 38,977.14 × 15,669.16
  4. Step 4: Simplify right side
    28,244.68x = 610,739,043.00
  5. Step 5: Solve for x
    x = 610,739,043.00/28,244.68
  6. Step 6: Final answer
    x = 21,623.15

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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.