Home / 30,901.44-46,374.56-21,017.28

Finding the Fourth Proportional to 30,901.44, 46,374.56 and 21,017.28

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Solution

The fourth proportional to 30,901.44, 46,374.56 and 21,017.28 is: 31,541.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,901.44 : 46,374.56 = 21,017.28 : x
  2. Step 2: Convert to fraction form
    30,901.44/46,374.56 = 21,017.28/x
  3. Step 3: Cross multiply
    30,901.44x = 46,374.56 × 21,017.28
  4. Step 4: Simplify right side
    30,901.44x = 974,667,112.40
  5. Step 5: Solve for x
    x = 974,667,112.40/30,901.44
  6. Step 6: Final answer
    x = 31,541.16

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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.