Home / 43,186.24-64,779.60-12,021.52

Finding the Fourth Proportional to 43,186.24, 64,779.60 and 12,021.52

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Solution

The fourth proportional to 43,186.24, 64,779.60 and 12,021.52 is: 18,032.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,186.24 : 64,779.60 = 12,021.52 : x
  2. Step 2: Convert to fraction form
    43,186.24/64,779.60 = 12,021.52/x
  3. Step 3: Cross multiply
    43,186.24x = 64,779.60 × 12,021.52
  4. Step 4: Simplify right side
    43,186.24x = 778,749,256.99
  5. Step 5: Solve for x
    x = 778,749,256.99/43,186.24
  6. Step 6: Final answer
    x = 18,032.35

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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.