Home / 39,021.60-58,532.40-15,664.80

Finding the Fourth Proportional to 39,021.60, 58,532.40 and 15,664.80

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Solution

The fourth proportional to 39,021.60, 58,532.40 and 15,664.80 is: 23,497.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,021.60 : 58,532.40 = 15,664.80 : x
  2. Step 2: Convert to fraction form
    39,021.60/58,532.40 = 15,664.80/x
  3. Step 3: Cross multiply
    39,021.60x = 58,532.40 × 15,664.80
  4. Step 4: Simplify right side
    39,021.60x = 916,898,339.52
  5. Step 5: Solve for x
    x = 916,898,339.52/39,021.60
  6. Step 6: Final answer
    x = 23,497.20

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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.