Home / 21,185.01-29,237.63-12,235.32

Finding the Fourth Proportional to 21,185.01, 29,237.63 and 12,235.32

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Solution

The fourth proportional to 21,185.01, 29,237.63 and 12,235.32 is: 16,886.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,185.01 : 29,237.63 = 12,235.32 : x
  2. Step 2: Convert to fraction form
    21,185.01/29,237.63 = 12,235.32/x
  3. Step 3: Cross multiply
    21,185.01x = 29,237.63 × 12,235.32
  4. Step 4: Simplify right side
    21,185.01x = 357,731,697.92
  5. Step 5: Solve for x
    x = 357,731,697.92/21,185.01
  6. Step 6: Final answer
    x = 16,886.08

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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.