Home / 38,578.19-57,848.14-12,279.51

Finding the Fourth Proportional to 38,578.19, 57,848.14 and 12,279.51

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Solution

The fourth proportional to 38,578.19, 57,848.14 and 12,279.51 is: 18,413.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,578.19 : 57,848.14 = 12,279.51 : x
  2. Step 2: Convert to fraction form
    38,578.19/57,848.14 = 12,279.51/x
  3. Step 3: Cross multiply
    38,578.19x = 57,848.14 × 12,279.51
  4. Step 4: Simplify right side
    38,578.19x = 710,346,782.91
  5. Step 5: Solve for x
    x = 710,346,782.91/38,578.19
  6. Step 6: Final answer
    x = 18,413.17

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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.