Home / 23,075.76-31,823.64-15,115.08

Finding the Fourth Proportional to 23,075.76, 31,823.64 and 15,115.08

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Solution

The fourth proportional to 23,075.76, 31,823.64 and 15,115.08 is: 20,845.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,075.76 : 31,823.64 = 15,115.08 : x
  2. Step 2: Convert to fraction form
    23,075.76/31,823.64 = 15,115.08/x
  3. Step 3: Cross multiply
    23,075.76x = 31,823.64 × 15,115.08
  4. Step 4: Simplify right side
    23,075.76x = 481,016,864.49
  5. Step 5: Solve for x
    x = 481,016,864.49/23,075.76
  6. Step 6: Final answer
    x = 20,845.11

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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.