Home / 21,313.98-29,411.22-12,362.07

Finding the Fourth Proportional to 21,313.98, 29,411.22 and 12,362.07

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Solution

The fourth proportional to 21,313.98, 29,411.22 and 12,362.07 is: 17,058.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,313.98 : 29,411.22 = 12,362.07 : x
  2. Step 2: Convert to fraction form
    21,313.98/29,411.22 = 12,362.07/x
  3. Step 3: Cross multiply
    21,313.98x = 29,411.22 × 12,362.07
  4. Step 4: Simplify right side
    21,313.98x = 363,583,560.43
  5. Step 5: Solve for x
    x = 363,583,560.43/21,313.98
  6. Step 6: Final answer
    x = 17,058.45

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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.