Home / 28,072.71-38,740.37-15,497.46

Finding the Fourth Proportional to 28,072.71, 38,740.37 and 15,497.46

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Solution

The fourth proportional to 28,072.71, 38,740.37 and 15,497.46 is: 21,386.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072.71 : 38,740.37 = 15,497.46 : x
  2. Step 2: Convert to fraction form
    28,072.71/38,740.37 = 15,497.46/x
  3. Step 3: Cross multiply
    28,072.71x = 38,740.37 × 15,497.46
  4. Step 4: Simplify right side
    28,072.71x = 600,377,256.97
  5. Step 5: Solve for x
    x = 600,377,256.97/28,072.71
  6. Step 6: Final answer
    x = 21,386.51

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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.