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Finding the Fourth Proportional to 31,978.02, 44,130.06 and 18,549.84

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Solution

The fourth proportional to 31,978.02, 44,130.06 and 18,549.84 is: 25,599.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,978.02 : 44,130.06 = 18,549.84 : x
  2. Step 2: Convert to fraction form
    31,978.02/44,130.06 = 18,549.84/x
  3. Step 3: Cross multiply
    31,978.02x = 44,130.06 × 18,549.84
  4. Step 4: Simplify right side
    31,978.02x = 818,605,552.19
  5. Step 5: Solve for x
    x = 818,605,552.19/31,978.02
  6. Step 6: Final answer
    x = 25,599.01

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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.