Home / 21,271.76-29,356.01-11,840.93

Finding the Fourth Proportional to 21,271.76, 29,356.01 and 11,840.93

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Solution

The fourth proportional to 21,271.76, 29,356.01 and 11,840.93 is: 16,341.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,271.76 : 29,356.01 = 11,840.93 : x
  2. Step 2: Convert to fraction form
    21,271.76/29,356.01 = 11,840.93/x
  3. Step 3: Cross multiply
    21,271.76x = 29,356.01 × 11,840.93
  4. Step 4: Simplify right side
    21,271.76x = 347,602,400.28
  5. Step 5: Solve for x
    x = 347,602,400.28/21,271.76
  6. Step 6: Final answer
    x = 16,341.03

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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.