Home / 26,106.40-39,159.60-20,922.40

Finding the Fourth Proportional to 26,106.40, 39,159.60 and 20,922.40

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Solution

The fourth proportional to 26,106.40, 39,159.60 and 20,922.40 is: 31,383.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,106.40 : 39,159.60 = 20,922.40 : x
  2. Step 2: Convert to fraction form
    26,106.40/39,159.60 = 20,922.40/x
  3. Step 3: Cross multiply
    26,106.40x = 39,159.60 × 20,922.40
  4. Step 4: Simplify right side
    26,106.40x = 819,312,815.04
  5. Step 5: Solve for x
    x = 819,312,815.04/26,106.40
  6. Step 6: Final answer
    x = 31,383.60

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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.