Home / 30,720.01-46,085.44-12,708.20

Finding the Fourth Proportional to 30,720.01, 46,085.44 and 12,708.20

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Solution

The fourth proportional to 30,720.01, 46,085.44 and 12,708.20 is: 19,064.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,720.01 : 46,085.44 = 12,708.20 : x
  2. Step 2: Convert to fraction form
    30,720.01/46,085.44 = 12,708.20/x
  3. Step 3: Cross multiply
    30,720.01x = 46,085.44 × 12,708.20
  4. Step 4: Simplify right side
    30,720.01x = 585,662,988.61
  5. Step 5: Solve for x
    x = 585,662,988.61/30,720.01
  6. Step 6: Final answer
    x = 19,064.54

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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.