Home / 43,915.63-65,875.26-12,750.88

Finding the Fourth Proportional to 43,915.63, 65,875.26 and 12,750.88

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Solution

The fourth proportional to 43,915.63, 65,875.26 and 12,750.88 is: 19,126.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,915.63 : 65,875.26 = 12,750.88 : x
  2. Step 2: Convert to fraction form
    43,915.63/65,875.26 = 12,750.88/x
  3. Step 3: Cross multiply
    43,915.63x = 65,875.26 × 12,750.88
  4. Step 4: Simplify right side
    43,915.63x = 839,967,535.23
  5. Step 5: Solve for x
    x = 839,967,535.23/43,915.63
  6. Step 6: Final answer
    x = 19,126.85

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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.