Home / 28,155.57-38,852.06-16,822.81

Finding the Fourth Proportional to 28,155.57, 38,852.06 and 16,822.81

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Solution

The fourth proportional to 28,155.57, 38,852.06 and 16,822.81 is: 23,213.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,155.57 : 38,852.06 = 16,822.81 : x
  2. Step 2: Convert to fraction form
    28,155.57/38,852.06 = 16,822.81/x
  3. Step 3: Cross multiply
    28,155.57x = 38,852.06 × 16,822.81
  4. Step 4: Simplify right side
    28,155.57x = 653,600,897.21
  5. Step 5: Solve for x
    x = 653,600,897.21/28,155.57
  6. Step 6: Final answer
    x = 23,213.91

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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.