Home / 21,774.76-30,051.30-13,276.24

Finding the Fourth Proportional to 21,774.76, 30,051.30 and 13,276.24

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Solution

The fourth proportional to 21,774.76, 30,051.30 and 13,276.24 is: 18,322.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,774.76 : 30,051.30 = 13,276.24 : x
  2. Step 2: Convert to fraction form
    21,774.76/30,051.30 = 13,276.24/x
  3. Step 3: Cross multiply
    21,774.76x = 30,051.30 × 13,276.24
  4. Step 4: Simplify right side
    21,774.76x = 398,968,271.11
  5. Step 5: Solve for x
    x = 398,968,271.11/21,774.76
  6. Step 6: Final answer
    x = 18,322.51

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Double scale
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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.