Home / 19,975.60-29,963.40-6,122.80

Finding the Fourth Proportional to 19,975.60, 29,963.40 and 6,122.80

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Solution

The fourth proportional to 19,975.60, 29,963.40 and 6,122.80 is: 9,184.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,975.60 : 29,963.40 = 6,122.80 : x
  2. Step 2: Convert to fraction form
    19,975.60/29,963.40 = 6,122.80/x
  3. Step 3: Cross multiply
    19,975.60x = 29,963.40 × 6,122.80
  4. Step 4: Simplify right side
    19,975.60x = 183,459,905.52
  5. Step 5: Solve for x
    x = 183,459,905.52/19,975.60
  6. Step 6: Final answer
    x = 9,184.20

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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.