Home / 21,772.06-30,054.63-14,708.05

Finding the Fourth Proportional to 21,772.06, 30,054.63 and 14,708.05

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Solution

The fourth proportional to 21,772.06, 30,054.63 and 14,708.05 is: 20,303.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,772.06 : 30,054.63 = 14,708.05 : x
  2. Step 2: Convert to fraction form
    21,772.06/30,054.63 = 14,708.05/x
  3. Step 3: Cross multiply
    21,772.06x = 30,054.63 × 14,708.05
  4. Step 4: Simplify right side
    21,772.06x = 442,045,000.77
  5. Step 5: Solve for x
    x = 442,045,000.77/21,772.06
  6. Step 6: Final answer
    x = 20,303.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.