Home / 31,378.80-47,075.04-15,592.32

Finding the Fourth Proportional to 31,378.80, 47,075.04 and 15,592.32

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Solution

The fourth proportional to 31,378.80, 47,075.04 and 15,592.32 is: 23,391.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,378.80 : 47,075.04 = 15,592.32 : x
  2. Step 2: Convert to fraction form
    31,378.80/47,075.04 = 15,592.32/x
  3. Step 3: Cross multiply
    31,378.80x = 47,075.04 × 15,592.32
  4. Step 4: Simplify right side
    31,378.80x = 734,009,087.69
  5. Step 5: Solve for x
    x = 734,009,087.69/31,378.80
  6. Step 6: Final answer
    x = 23,391.88

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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.