Home / 21,327.44-29,430.60-12,374.24

Finding the Fourth Proportional to 21,327.44, 29,430.60 and 12,374.24

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Solution

The fourth proportional to 21,327.44, 29,430.60 and 12,374.24 is: 17,075.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,327.44 : 29,430.60 = 12,374.24 : x
  2. Step 2: Convert to fraction form
    21,327.44/29,430.60 = 12,374.24/x
  3. Step 3: Cross multiply
    21,327.44x = 29,430.60 × 12,374.24
  4. Step 4: Simplify right side
    21,327.44x = 364,181,307.74
  5. Step 5: Solve for x
    x = 364,181,307.74/21,327.44
  6. Step 6: Final answer
    x = 17,075.72

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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.