Home / 21,055.65-29,057.00-11,495.45

Finding the Fourth Proportional to 21,055.65, 29,057.00 and 11,495.45

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Solution

The fourth proportional to 21,055.65, 29,057.00 and 11,495.45 is: 15,863.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,055.65 : 29,057.00 = 11,495.45 : x
  2. Step 2: Convert to fraction form
    21,055.65/29,057.00 = 11,495.45/x
  3. Step 3: Cross multiply
    21,055.65x = 29,057.00 × 11,495.45
  4. Step 4: Simplify right side
    21,055.65x = 334,023,305.82
  5. Step 5: Solve for x
    x = 334,023,305.82/21,055.65
  6. Step 6: Final answer
    x = 15,863.84

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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.