Home / 19,390.23-29,085.48-8,858.07

Finding the Fourth Proportional to 19,390.23, 29,085.48 and 8,858.07

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Solution

The fourth proportional to 19,390.23, 29,085.48 and 8,858.07 is: 13,287.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,390.23 : 29,085.48 = 8,858.07 : x
  2. Step 2: Convert to fraction form
    19,390.23/29,085.48 = 8,858.07/x
  3. Step 3: Cross multiply
    19,390.23x = 29,085.48 × 8,858.07
  4. Step 4: Simplify right side
    19,390.23x = 257,641,217.82
  5. Step 5: Solve for x
    x = 257,641,217.82/19,390.23
  6. Step 6: Final answer
    x = 13,287.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.