Home / 28,069.63-38,736.16-15,322.82

Finding the Fourth Proportional to 28,069.63, 38,736.16 and 15,322.82

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Solution

The fourth proportional to 28,069.63, 38,736.16 and 15,322.82 is: 21,145.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,069.63 : 38,736.16 = 15,322.82 : x
  2. Step 2: Convert to fraction form
    28,069.63/38,736.16 = 15,322.82/x
  3. Step 3: Cross multiply
    28,069.63x = 38,736.16 × 15,322.82
  4. Step 4: Simplify right side
    28,069.63x = 593,547,257.72
  5. Step 5: Solve for x
    x = 593,547,257.72/28,069.63
  6. Step 6: Final answer
    x = 21,145.53

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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.