Home / 43,152.90-64,729.35-13,579.80

Finding the Fourth Proportional to 43,152.90, 64,729.35 and 13,579.80

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Solution

The fourth proportional to 43,152.90, 64,729.35 and 13,579.80 is: 20,369.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,152.90 : 64,729.35 = 13,579.80 : x
  2. Step 2: Convert to fraction form
    43,152.90/64,729.35 = 13,579.80/x
  3. Step 3: Cross multiply
    43,152.90x = 64,729.35 × 13,579.80
  4. Step 4: Simplify right side
    43,152.90x = 879,011,627.13
  5. Step 5: Solve for x
    x = 879,011,627.13/43,152.90
  6. Step 6: Final answer
    x = 20,369.70

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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.