Home / 31,907.04-47,830.99-14,128.23

Finding the Fourth Proportional to 31,907.04, 47,830.99 and 14,128.23

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Solution

The fourth proportional to 31,907.04, 47,830.99 and 14,128.23 is: 21,179.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,907.04 : 47,830.99 = 14,128.23 : x
  2. Step 2: Convert to fraction form
    31,907.04/47,830.99 = 14,128.23/x
  3. Step 3: Cross multiply
    31,907.04x = 47,830.99 × 14,128.23
  4. Step 4: Simplify right side
    31,907.04x = 675,767,227.85
  5. Step 5: Solve for x
    x = 675,767,227.85/31,907.04
  6. Step 6: Final answer
    x = 21,179.25

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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.