Home / 34,431.36-47,515.86-19,117.50

Finding the Fourth Proportional to 34,431.36, 47,515.86 and 19,117.50

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Solution

The fourth proportional to 34,431.36, 47,515.86 and 19,117.50 is: 26,382.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,431.36 : 47,515.86 = 19,117.50 : x
  2. Step 2: Convert to fraction form
    34,431.36/47,515.86 = 19,117.50/x
  3. Step 3: Cross multiply
    34,431.36x = 47,515.86 × 19,117.50
  4. Step 4: Simplify right side
    34,431.36x = 908,384,453.55
  5. Step 5: Solve for x
    x = 908,384,453.55/34,431.36
  6. Step 6: Final answer
    x = 26,382.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.