Home / 31,054.53-42,855.27-16,907.40

Finding the Fourth Proportional to 31,054.53, 42,855.27 and 16,907.40

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Solution

The fourth proportional to 31,054.53, 42,855.27 and 16,907.40 is: 23,332.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,054.53 : 42,855.27 = 16,907.40 : x
  2. Step 2: Convert to fraction form
    31,054.53/42,855.27 = 16,907.40/x
  3. Step 3: Cross multiply
    31,054.53x = 42,855.27 × 16,907.40
  4. Step 4: Simplify right side
    31,054.53x = 724,571,192.00
  5. Step 5: Solve for x
    x = 724,571,192.00/31,054.53
  6. Step 6: Final answer
    x = 23,332.22

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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.