Home / 21,055.60-31,594.38-8,584.84

Finding the Fourth Proportional to 21,055.60, 31,594.38 and 8,584.84

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Solution

The fourth proportional to 21,055.60, 31,594.38 and 8,584.84 is: 12,881.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,055.60 : 31,594.38 = 8,584.84 : x
  2. Step 2: Convert to fraction form
    21,055.60/31,594.38 = 8,584.84/x
  3. Step 3: Cross multiply
    21,055.60x = 31,594.38 × 8,584.84
  4. Step 4: Simplify right side
    21,055.60x = 271,232,697.20
  5. Step 5: Solve for x
    x = 271,232,697.20/21,055.60
  6. Step 6: Final answer
    x = 12,881.74

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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.