Home / 19,490.38-29,238.63-6,339.67

Finding the Fourth Proportional to 19,490.38, 29,238.63 and 6,339.67

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Solution

The fourth proportional to 19,490.38, 29,238.63 and 6,339.67 is: 9,510.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,490.38 : 29,238.63 = 6,339.67 : x
  2. Step 2: Convert to fraction form
    19,490.38/29,238.63 = 6,339.67/x
  3. Step 3: Cross multiply
    19,490.38x = 29,238.63 × 6,339.67
  4. Step 4: Simplify right side
    19,490.38x = 185,363,265.45
  5. Step 5: Solve for x
    x = 185,363,265.45/19,490.38
  6. Step 6: Final answer
    x = 9,510.50

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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.