Home / 38,779.37-58,169.36-21,239.63

Finding the Fourth Proportional to 38,779.37, 58,169.36 and 21,239.63

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Solution

The fourth proportional to 38,779.37, 58,169.36 and 21,239.63 is: 31,859.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,779.37 : 58,169.36 = 21,239.63 : x
  2. Step 2: Convert to fraction form
    38,779.37/58,169.36 = 21,239.63/x
  3. Step 3: Cross multiply
    38,779.37x = 58,169.36 × 21,239.63
  4. Step 4: Simplify right side
    38,779.37x = 1,235,495,683.74
  5. Step 5: Solve for x
    x = 1,235,495,683.74/38,779.37
  6. Step 6: Final answer
    x = 31,859.61

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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.