Home / 31,075.15-42,883.68-16,928.01

Finding the Fourth Proportional to 31,075.15, 42,883.68 and 16,928.01

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Solution

The fourth proportional to 31,075.15, 42,883.68 and 16,928.01 is: 23,360.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,075.15 : 42,883.68 = 16,928.01 : x
  2. Step 2: Convert to fraction form
    31,075.15/42,883.68 = 16,928.01/x
  3. Step 3: Cross multiply
    31,075.15x = 42,883.68 × 16,928.01
  4. Step 4: Simplify right side
    31,075.15x = 725,935,363.88
  5. Step 5: Solve for x
    x = 725,935,363.88/31,075.15
  6. Step 6: Final answer
    x = 23,360.64

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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.