Home / 39,811.02-59,716.80-18,971.34

Finding the Fourth Proportional to 39,811.02, 59,716.80 and 18,971.34

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Solution

The fourth proportional to 39,811.02, 59,716.80 and 18,971.34 is: 28,457.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,811.02 : 59,716.80 = 18,971.34 : x
  2. Step 2: Convert to fraction form
    39,811.02/59,716.80 = 18,971.34/x
  3. Step 3: Cross multiply
    39,811.02x = 59,716.80 × 18,971.34
  4. Step 4: Simplify right side
    39,811.02x = 1,132,907,716.51
  5. Step 5: Solve for x
    x = 1,132,907,716.51/39,811.02
  6. Step 6: Final answer
    x = 28,457.14

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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.