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Finding the Fourth Proportional to 35,155.33, 48,506.85 and 20,819.67

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Solution

The fourth proportional to 35,155.33, 48,506.85 and 20,819.67 is: 28,726.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,155.33 : 48,506.85 = 20,819.67 : x
  2. Step 2: Convert to fraction form
    35,155.33/48,506.85 = 20,819.67/x
  3. Step 3: Cross multiply
    35,155.33x = 48,506.85 × 20,819.67
  4. Step 4: Simplify right side
    35,155.33x = 1,009,896,427.84
  5. Step 5: Solve for x
    x = 1,009,896,427.84/35,155.33
  6. Step 6: Final answer
    x = 28,726.70

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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.