Home / 42,788.36-64,183.42-13,206.22

Finding the Fourth Proportional to 42,788.36, 64,183.42 and 13,206.22

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Solution

The fourth proportional to 42,788.36, 64,183.42 and 13,206.22 is: 19,809.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,788.36 : 64,183.42 = 13,206.22 : x
  2. Step 2: Convert to fraction form
    42,788.36/64,183.42 = 13,206.22/x
  3. Step 3: Cross multiply
    42,788.36x = 64,183.42 × 13,206.22
  4. Step 4: Simplify right side
    42,788.36x = 847,620,364.87
  5. Step 5: Solve for x
    x = 847,620,364.87/42,788.36
  6. Step 6: Final answer
    x = 19,809.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.