Home / 21,334.79-29,448.26-12,386.32

Finding the Fourth Proportional to 21,334.79, 29,448.26 and 12,386.32

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Solution

The fourth proportional to 21,334.79, 29,448.26 and 12,386.32 is: 17,096.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,334.79 : 29,448.26 = 12,386.32 : x
  2. Step 2: Convert to fraction form
    21,334.79/29,448.26 = 12,386.32/x
  3. Step 3: Cross multiply
    21,334.79x = 29,448.26 × 12,386.32
  4. Step 4: Simplify right side
    21,334.79x = 364,755,482.70
  5. Step 5: Solve for x
    x = 364,755,482.70/21,334.79
  6. Step 6: Final answer
    x = 17,096.74

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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.