Home / 43,686.19-65,529.35-18,724.28

Finding the Fourth Proportional to 43,686.19, 65,529.35 and 18,724.28

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Solution

The fourth proportional to 43,686.19, 65,529.35 and 18,724.28 is: 28,086.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,686.19 : 65,529.35 = 18,724.28 : x
  2. Step 2: Convert to fraction form
    43,686.19/65,529.35 = 18,724.28/x
  3. Step 3: Cross multiply
    43,686.19x = 65,529.35 × 18,724.28
  4. Step 4: Simplify right side
    43,686.19x = 1,226,989,804.00
  5. Step 5: Solve for x
    x = 1,226,989,804.00/43,686.19
  6. Step 6: Final answer
    x = 28,086.45

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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.