Home / 28,603.33-39,471.89-15,856.28

Finding the Fourth Proportional to 28,603.33, 39,471.89 and 15,856.28

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Solution

The fourth proportional to 28,603.33, 39,471.89 and 15,856.28 is: 21,881.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,603.33 : 39,471.89 = 15,856.28 : x
  2. Step 2: Convert to fraction form
    28,603.33/39,471.89 = 15,856.28/x
  3. Step 3: Cross multiply
    28,603.33x = 39,471.89 × 15,856.28
  4. Step 4: Simplify right side
    28,603.33x = 625,877,063.33
  5. Step 5: Solve for x
    x = 625,877,063.33/28,603.33
  6. Step 6: Final answer
    x = 21,881.27

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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.