Home / 14,390.06-21,585.09-13,577.90

Finding the Fourth Proportional to 14,390.06, 21,585.09 and 13,577.90

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Solution

The fourth proportional to 14,390.06, 21,585.09 and 13,577.90 is: 20,366.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,390.06 : 21,585.09 = 13,577.90 : x
  2. Step 2: Convert to fraction form
    14,390.06/21,585.09 = 13,577.90/x
  3. Step 3: Cross multiply
    14,390.06x = 21,585.09 × 13,577.90
  4. Step 4: Simplify right side
    14,390.06x = 293,080,193.51
  5. Step 5: Solve for x
    x = 293,080,193.51/14,390.06
  6. Step 6: Final answer
    x = 20,366.85

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1.5x scale

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.