Home / 26,985.18-40,477.74-12,558.06

Finding the Fourth Proportional to 26,985.18, 40,477.74 and 12,558.06

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Solution

The fourth proportional to 26,985.18, 40,477.74 and 12,558.06 is: 18,837.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,985.18 : 40,477.74 = 12,558.06 : x
  2. Step 2: Convert to fraction form
    26,985.18/40,477.74 = 12,558.06/x
  3. Step 3: Cross multiply
    26,985.18x = 40,477.74 × 12,558.06
  4. Step 4: Simplify right side
    26,985.18x = 508,321,887.58
  5. Step 5: Solve for x
    x = 508,321,887.58/26,985.18
  6. Step 6: Final answer
    x = 18,837.08

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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.