Home / 30,279.02-45,389.07-14,479.97

Finding the Fourth Proportional to 30,279.02, 45,389.07 and 14,479.97

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Solution

The fourth proportional to 30,279.02, 45,389.07 and 14,479.97 is: 21,705.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,279.02 : 45,389.07 = 14,479.97 : x
  2. Step 2: Convert to fraction form
    30,279.02/45,389.07 = 14,479.97/x
  3. Step 3: Cross multiply
    30,279.02x = 45,389.07 × 14,479.97
  4. Step 4: Simplify right side
    30,279.02x = 657,232,144.98
  5. Step 5: Solve for x
    x = 657,232,144.98/30,279.02
  6. Step 6: Final answer
    x = 21,705.86

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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.