Home / 31,279.03-46,929.35-19,578.31

Finding the Fourth Proportional to 31,279.03, 46,929.35 and 19,578.31

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Solution

The fourth proportional to 31,279.03, 46,929.35 and 19,578.31 is: 29,374.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,279.03 : 46,929.35 = 19,578.31 : x
  2. Step 2: Convert to fraction form
    31,279.03/46,929.35 = 19,578.31/x
  3. Step 3: Cross multiply
    31,279.03x = 46,929.35 × 19,578.31
  4. Step 4: Simplify right side
    31,279.03x = 918,797,362.40
  5. Step 5: Solve for x
    x = 918,797,362.40/31,279.03
  6. Step 6: Final answer
    x = 29,374.23

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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.