Home / 31,790.14-47,700.70-13,075.79

Finding the Fourth Proportional to 31,790.14, 47,700.70 and 13,075.79

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Solution

The fourth proportional to 31,790.14, 47,700.70 and 13,075.79 is: 19,620.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,790.14 : 47,700.70 = 13,075.79 : x
  2. Step 2: Convert to fraction form
    31,790.14/47,700.70 = 13,075.79/x
  3. Step 3: Cross multiply
    31,790.14x = 47,700.70 × 13,075.79
  4. Step 4: Simplify right side
    31,790.14x = 623,724,064.86
  5. Step 5: Solve for x
    x = 623,724,064.86/31,790.14
  6. Step 6: Final answer
    x = 19,620.05

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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.