Home / 34,759.68-52,128.80-12,570.40

Finding the Fourth Proportional to 34,759.68, 52,128.80 and 12,570.40

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Solution

The fourth proportional to 34,759.68, 52,128.80 and 12,570.40 is: 18,851.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,759.68 : 52,128.80 = 12,570.40 : x
  2. Step 2: Convert to fraction form
    34,759.68/52,128.80 = 12,570.40/x
  3. Step 3: Cross multiply
    34,759.68x = 52,128.80 × 12,570.40
  4. Step 4: Simplify right side
    34,759.68x = 655,279,867.52
  5. Step 5: Solve for x
    x = 655,279,867.52/34,759.68
  6. Step 6: Final answer
    x = 18,851.72

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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.