Home / 30,719.80-42,394.71-17,295.67

Finding the Fourth Proportional to 30,719.80, 42,394.71 and 17,295.67

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Solution

The fourth proportional to 30,719.80, 42,394.71 and 17,295.67 is: 23,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,719.80 : 42,394.71 = 17,295.67 : x
  2. Step 2: Convert to fraction form
    30,719.80/42,394.71 = 17,295.67/x
  3. Step 3: Cross multiply
    30,719.80x = 42,394.71 × 17,295.67
  4. Step 4: Simplify right side
    30,719.80x = 733,244,913.91
  5. Step 5: Solve for x
    x = 733,244,913.91/30,719.80
  6. Step 6: Final answer
    x = 23,868.80

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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.