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Finding the Fourth Proportional to 20,020, 30,094.80 and 18,577.12

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Solution

The fourth proportional to 20,020, 30,094.80 and 18,577.12 is: 27,925.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020 : 30,094.80 = 18,577.12 : x
  2. Step 2: Convert to fraction form
    20,020/30,094.80 = 18,577.12/x
  3. Step 3: Cross multiply
    20,020x = 30,094.80 × 18,577.12
  4. Step 4: Simplify right side
    20,020x = 559,074,710.98
  5. Step 5: Solve for x
    x = 559,074,710.98/20,020
  6. Step 6: Final answer
    x = 27,925.81

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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.