Home / 21,946.60-32,925.10-7,155.60

Finding the Fourth Proportional to 21,946.60, 32,925.10 and 7,155.60

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Solution

The fourth proportional to 21,946.60, 32,925.10 and 7,155.60 is: 10,735.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,946.60 : 32,925.10 = 7,155.60 : x
  2. Step 2: Convert to fraction form
    21,946.60/32,925.10 = 7,155.60/x
  3. Step 3: Cross multiply
    21,946.60x = 32,925.10 × 7,155.60
  4. Step 4: Simplify right side
    21,946.60x = 235,598,845.56
  5. Step 5: Solve for x
    x = 235,598,845.56/21,946.60
  6. Step 6: Final answer
    x = 10,735.10

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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.