Home / 23,187.95-31,999.55-12,577.58

Finding the Fourth Proportional to 23,187.95, 31,999.55 and 12,577.58

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Solution

The fourth proportional to 23,187.95, 31,999.55 and 12,577.58 is: 17,357.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,187.95 : 31,999.55 = 12,577.58 : x
  2. Step 2: Convert to fraction form
    23,187.95/31,999.55 = 12,577.58/x
  3. Step 3: Cross multiply
    23,187.95x = 31,999.55 × 12,577.58
  4. Step 4: Simplify right side
    23,187.95x = 402,476,900.09
  5. Step 5: Solve for x
    x = 402,476,900.09/23,187.95
  6. Step 6: Final answer
    x = 17,357.16

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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.