Home / 21,647.09-32,507.69-13,376.18

Finding the Fourth Proportional to 21,647.09, 32,507.69 and 13,376.18

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Solution

The fourth proportional to 21,647.09, 32,507.69 and 13,376.18 is: 20,087.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,647.09 : 32,507.69 = 13,376.18 : x
  2. Step 2: Convert to fraction form
    21,647.09/32,507.69 = 13,376.18/x
  3. Step 3: Cross multiply
    21,647.09x = 32,507.69 × 13,376.18
  4. Step 4: Simplify right side
    21,647.09x = 434,828,483.40
  5. Step 5: Solve for x
    x = 434,828,483.40/21,647.09
  6. Step 6: Final answer
    x = 20,087.16

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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.