Home / 35,155.11-48,506.54-20,819.45

Finding the Fourth Proportional to 35,155.11, 48,506.54 and 20,819.45

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Solution

The fourth proportional to 35,155.11, 48,506.54 and 20,819.45 is: 28,726.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,155.11 : 48,506.54 = 20,819.45 : x
  2. Step 2: Convert to fraction form
    35,155.11/48,506.54 = 20,819.45/x
  3. Step 3: Cross multiply
    35,155.11x = 48,506.54 × 20,819.45
  4. Step 4: Simplify right side
    35,155.11x = 1,009,879,484.20
  5. Step 5: Solve for x
    x = 1,009,879,484.20/35,155.11
  6. Step 6: Final answer
    x = 28,726.39

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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.