Home / 32,779.20-45,239.36-20,029.76

Finding the Fourth Proportional to 32,779.20, 45,239.36 and 20,029.76

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Solution

The fourth proportional to 32,779.20, 45,239.36 and 20,029.76 is: 27,643.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,779.20 : 45,239.36 = 20,029.76 : x
  2. Step 2: Convert to fraction form
    32,779.20/45,239.36 = 20,029.76/x
  3. Step 3: Cross multiply
    32,779.20x = 45,239.36 × 20,029.76
  4. Step 4: Simplify right side
    32,779.20x = 906,133,523.35
  5. Step 5: Solve for x
    x = 906,133,523.35/32,779.20
  6. Step 6: Final answer
    x = 27,643.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.