Home / 31,378.68-47,075.02-10,601.64

Finding the Fourth Proportional to 31,378.68, 47,075.02 and 10,601.64

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Solution

The fourth proportional to 31,378.68, 47,075.02 and 10,601.64 is: 15,904.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,378.68 : 47,075.02 = 10,601.64 : x
  2. Step 2: Convert to fraction form
    31,378.68/47,075.02 = 10,601.64/x
  3. Step 3: Cross multiply
    31,378.68x = 47,075.02 × 10,601.64
  4. Step 4: Simplify right side
    31,378.68x = 499,072,415.03
  5. Step 5: Solve for x
    x = 499,072,415.03/31,378.68
  6. Step 6: Final answer
    x = 15,904.83

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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.