Home / 28,066.07-38,730.99-15,490.82

Finding the Fourth Proportional to 28,066.07, 38,730.99 and 15,490.82

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Solution

The fourth proportional to 28,066.07, 38,730.99 and 15,490.82 is: 21,377.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066.07 : 38,730.99 = 15,490.82 : x
  2. Step 2: Convert to fraction form
    28,066.07/38,730.99 = 15,490.82/x
  3. Step 3: Cross multiply
    28,066.07x = 38,730.99 × 15,490.82
  4. Step 4: Simplify right side
    28,066.07x = 599,974,794.51
  5. Step 5: Solve for x
    x = 599,974,794.51/28,066.07
  6. Step 6: Final answer
    x = 21,377.23

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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.