Home / 19,765.48-29,647.86-4,974.40

Finding the Fourth Proportional to 19,765.48, 29,647.86 and 4,974.40

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Solution

The fourth proportional to 19,765.48, 29,647.86 and 4,974.40 is: 7,461.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,765.48 : 29,647.86 = 4,974.40 : x
  2. Step 2: Convert to fraction form
    19,765.48/29,647.86 = 4,974.40/x
  3. Step 3: Cross multiply
    19,765.48x = 29,647.86 × 4,974.40
  4. Step 4: Simplify right side
    19,765.48x = 147,480,314.78
  5. Step 5: Solve for x
    x = 147,480,314.78/19,765.48
  6. Step 6: Final answer
    x = 7,461.51

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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.