Home / 21,347.00-29,458.74-12,396.70

Finding the Fourth Proportional to 21,347.00, 29,458.74 and 12,396.70

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Solution

The fourth proportional to 21,347.00, 29,458.74 and 12,396.70 is: 17,107.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,347.00 : 29,458.74 = 12,396.70 : x
  2. Step 2: Convert to fraction form
    21,347.00/29,458.74 = 12,396.70/x
  3. Step 3: Cross multiply
    21,347.00x = 29,458.74 × 12,396.70
  4. Step 4: Simplify right side
    21,347.00x = 365,191,088.51
  5. Step 5: Solve for x
    x = 365,191,088.51/21,347.00
  6. Step 6: Final answer
    x = 17,107.38

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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.