Home / 30,343.60-45,515.40-26,115.40

Finding the Fourth Proportional to 30,343.60, 45,515.40 and 26,115.40

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Solution

The fourth proportional to 30,343.60, 45,515.40 and 26,115.40 is: 39,173.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,343.60 : 45,515.40 = 26,115.40 : x
  2. Step 2: Convert to fraction form
    30,343.60/45,515.40 = 26,115.40/x
  3. Step 3: Cross multiply
    30,343.60x = 45,515.40 × 26,115.40
  4. Step 4: Simplify right side
    30,343.60x = 1,188,652,877.16
  5. Step 5: Solve for x
    x = 1,188,652,877.16/30,343.60
  6. Step 6: Final answer
    x = 39,173.10

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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.