Home / 21,464.40-29,627.06-12,965.18

Finding the Fourth Proportional to 21,464.40, 29,627.06 and 12,965.18

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Solution

The fourth proportional to 21,464.40, 29,627.06 and 12,965.18 is: 17,895.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,464.40 : 29,627.06 = 12,965.18 : x
  2. Step 2: Convert to fraction form
    21,464.40/29,627.06 = 12,965.18/x
  3. Step 3: Cross multiply
    21,464.40x = 29,627.06 × 12,965.18
  4. Step 4: Simplify right side
    21,464.40x = 384,119,952.81
  5. Step 5: Solve for x
    x = 384,119,952.81/21,464.40
  6. Step 6: Final answer
    x = 17,895.68

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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.