Home / 21,559.37-29,752.01-12,127.32

Finding the Fourth Proportional to 21,559.37, 29,752.01 and 12,127.32

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Solution

The fourth proportional to 21,559.37, 29,752.01 and 12,127.32 is: 16,735.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,559.37 : 29,752.01 = 12,127.32 : x
  2. Step 2: Convert to fraction form
    21,559.37/29,752.01 = 12,127.32/x
  3. Step 3: Cross multiply
    21,559.37x = 29,752.01 × 12,127.32
  4. Step 4: Simplify right side
    21,559.37x = 360,812,130.75
  5. Step 5: Solve for x
    x = 360,812,130.75/21,559.37
  6. Step 6: Final answer
    x = 16,735.75

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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.