Home / 21,964.40-32,946.60-18,465.20

Finding the Fourth Proportional to 21,964.40, 32,946.60 and 18,465.20

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Solution

The fourth proportional to 21,964.40, 32,946.60 and 18,465.20 is: 27,697.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,964.40 : 32,946.60 = 18,465.20 : x
  2. Step 2: Convert to fraction form
    21,964.40/32,946.60 = 18,465.20/x
  3. Step 3: Cross multiply
    21,964.40x = 32,946.60 × 18,465.20
  4. Step 4: Simplify right side
    21,964.40x = 608,365,558.32
  5. Step 5: Solve for x
    x = 608,365,558.32/21,964.40
  6. Step 6: Final answer
    x = 27,697.80

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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.