Home / 30,247.29-45,375.80-12,722.13

Finding the Fourth Proportional to 30,247.29, 45,375.80 and 12,722.13

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Solution

The fourth proportional to 30,247.29, 45,375.80 and 12,722.13 is: 19,085.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,247.29 : 45,375.80 = 12,722.13 : x
  2. Step 2: Convert to fraction form
    30,247.29/45,375.80 = 12,722.13/x
  3. Step 3: Cross multiply
    30,247.29x = 45,375.80 × 12,722.13
  4. Step 4: Simplify right side
    30,247.29x = 577,276,762.84
  5. Step 5: Solve for x
    x = 577,276,762.84/30,247.29
  6. Step 6: Final answer
    x = 19,085.24

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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.