Home / 19,427.01-29,140.52-5,390.57

Finding the Fourth Proportional to 19,427.01, 29,140.52 and 5,390.57

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Solution

The fourth proportional to 19,427.01, 29,140.52 and 5,390.57 is: 8,085.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,427.01 : 29,140.52 = 5,390.57 : x
  2. Step 2: Convert to fraction form
    19,427.01/29,140.52 = 5,390.57/x
  3. Step 3: Cross multiply
    19,427.01x = 29,140.52 × 5,390.57
  4. Step 4: Simplify right side
    19,427.01x = 157,084,012.90
  5. Step 5: Solve for x
    x = 157,084,012.90/19,427.01
  6. Step 6: Final answer
    x = 8,085.86

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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.