Home / 38,355.87-52,929.62-21,360.83

Finding the Fourth Proportional to 38,355.87, 52,929.62 and 21,360.83

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Solution

The fourth proportional to 38,355.87, 52,929.62 and 21,360.83 is: 29,477.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,355.87 : 52,929.62 = 21,360.83 : x
  2. Step 2: Convert to fraction form
    38,355.87/52,929.62 = 21,360.83/x
  3. Step 3: Cross multiply
    38,355.87x = 52,929.62 × 21,360.83
  4. Step 4: Simplify right side
    38,355.87x = 1,130,620,800.51
  5. Step 5: Solve for x
    x = 1,130,620,800.51/38,355.87
  6. Step 6: Final answer
    x = 29,477.13

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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.