Home / 26,302.60-39,478.20-13,164.40

Finding the Fourth Proportional to 26,302.60, 39,478.20 and 13,164.40

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Solution

The fourth proportional to 26,302.60, 39,478.20 and 13,164.40 is: 19,758.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,302.60 : 39,478.20 = 13,164.40 : x
  2. Step 2: Convert to fraction form
    26,302.60/39,478.20 = 13,164.40/x
  3. Step 3: Cross multiply
    26,302.60x = 39,478.20 × 13,164.40
  4. Step 4: Simplify right side
    26,302.60x = 519,706,816.08
  5. Step 5: Solve for x
    x = 519,706,816.08/26,302.60
  6. Step 6: Final answer
    x = 19,758.76

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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.