Home / 39,009.60-58,514.40-22,420.80

Finding the Fourth Proportional to 39,009.60, 58,514.40 and 22,420.80

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Solution

The fourth proportional to 39,009.60, 58,514.40 and 22,420.80 is: 33,631.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,009.60 : 58,514.40 = 22,420.80 : x
  2. Step 2: Convert to fraction form
    39,009.60/58,514.40 = 22,420.80/x
  3. Step 3: Cross multiply
    39,009.60x = 58,514.40 × 22,420.80
  4. Step 4: Simplify right side
    39,009.60x = 1,311,939,659.52
  5. Step 5: Solve for x
    x = 1,311,939,659.52/39,009.60
  6. Step 6: Final answer
    x = 33,631.20

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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.