Home / 30,312.06-45,442.17-19,900.86

Finding the Fourth Proportional to 30,312.06, 45,442.17 and 19,900.86

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Solution

The fourth proportional to 30,312.06, 45,442.17 and 19,900.86 is: 29,834.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,312.06 : 45,442.17 = 19,900.86 : x
  2. Step 2: Convert to fraction form
    30,312.06/45,442.17 = 19,900.86/x
  3. Step 3: Cross multiply
    30,312.06x = 45,442.17 × 19,900.86
  4. Step 4: Simplify right side
    30,312.06x = 904,338,263.27
  5. Step 5: Solve for x
    x = 904,338,263.27/30,312.06
  6. Step 6: Final answer
    x = 29,834.27

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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.