Home / 22,929.23-31,643.85-12,858.32

Finding the Fourth Proportional to 22,929.23, 31,643.85 and 12,858.32

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Solution

The fourth proportional to 22,929.23, 31,643.85 and 12,858.32 is: 17,745.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,929.23 : 31,643.85 = 12,858.32 : x
  2. Step 2: Convert to fraction form
    22,929.23/31,643.85 = 12,858.32/x
  3. Step 3: Cross multiply
    22,929.23x = 31,643.85 × 12,858.32
  4. Step 4: Simplify right side
    22,929.23x = 406,886,591.11
  5. Step 5: Solve for x
    x = 406,886,591.11/22,929.23
  6. Step 6: Final answer
    x = 17,745.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.