Home / 42,795.24-64,199.79-13,206.15

Finding the Fourth Proportional to 42,795.24, 64,199.79 and 13,206.15

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Solution

The fourth proportional to 42,795.24, 64,199.79 and 13,206.15 is: 19,811.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,795.24 : 64,199.79 = 13,206.15 : x
  2. Step 2: Convert to fraction form
    42,795.24/64,199.79 = 13,206.15/x
  3. Step 3: Cross multiply
    42,795.24x = 64,199.79 × 13,206.15
  4. Step 4: Simplify right side
    42,795.24x = 847,832,056.71
  5. Step 5: Solve for x
    x = 847,832,056.71/42,795.24
  6. Step 6: Final answer
    x = 19,811.36

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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.