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Finding the Fourth Proportional to 30,989.01, 46,486.59 and 9,923.76

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Solution

The fourth proportional to 30,989.01, 46,486.59 and 9,923.76 is: 14,886.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,989.01 : 46,486.59 = 9,923.76 : x
  2. Step 2: Convert to fraction form
    30,989.01/46,486.59 = 9,923.76/x
  3. Step 3: Cross multiply
    30,989.01x = 46,486.59 × 9,923.76
  4. Step 4: Simplify right side
    30,989.01x = 461,321,762.38
  5. Step 5: Solve for x
    x = 461,321,762.38/30,989.01
  6. Step 6: Final answer
    x = 14,886.62

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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.