Home / 19,840.06-29,878.85-18,068.59

Finding the Fourth Proportional to 19,840.06, 29,878.85 and 18,068.59

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Solution

The fourth proportional to 19,840.06, 29,878.85 and 18,068.59 is: 27,211.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,840.06 : 29,878.85 = 18,068.59 : x
  2. Step 2: Convert to fraction form
    19,840.06/29,878.85 = 18,068.59/x
  3. Step 3: Cross multiply
    19,840.06x = 29,878.85 × 18,068.59
  4. Step 4: Simplify right side
    19,840.06x = 539,868,690.32
  5. Step 5: Solve for x
    x = 539,868,690.32/19,840.06
  6. Step 6: Final answer
    x = 27,211.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.