Home / 19,980.95-27,577.08-12,023.91

Finding the Fourth Proportional to 19,980.95, 27,577.08 and 12,023.91

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Solution

The fourth proportional to 19,980.95, 27,577.08 and 12,023.91 is: 16,595.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,980.95 : 27,577.08 = 12,023.91 : x
  2. Step 2: Convert to fraction form
    19,980.95/27,577.08 = 12,023.91/x
  3. Step 3: Cross multiply
    19,980.95x = 27,577.08 × 12,023.91
  4. Step 4: Simplify right side
    19,980.95x = 331,584,327.98
  5. Step 5: Solve for x
    x = 331,584,327.98/19,980.95
  6. Step 6: Final answer
    x = 16,595.03

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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.