Home / 39,090.04-58,647.48-12,788.80

Finding the Fourth Proportional to 39,090.04, 58,647.48 and 12,788.80

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Solution

The fourth proportional to 39,090.04, 58,647.48 and 12,788.80 is: 19,187.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,090.04 : 58,647.48 = 12,788.80 : x
  2. Step 2: Convert to fraction form
    39,090.04/58,647.48 = 12,788.80/x
  3. Step 3: Cross multiply
    39,090.04x = 58,647.48 × 12,788.80
  4. Step 4: Simplify right side
    39,090.04x = 750,030,892.22
  5. Step 5: Solve for x
    x = 750,030,892.22/39,090.04
  6. Step 6: Final answer
    x = 19,187.26

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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.