Home / 31,966.08-47,947.37-9,779.45

Finding the Fourth Proportional to 31,966.08, 47,947.37 and 9,779.45

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Solution

The fourth proportional to 31,966.08, 47,947.37 and 9,779.45 is: 14,668.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,966.08 : 47,947.37 = 9,779.45 : x
  2. Step 2: Convert to fraction form
    31,966.08/47,947.37 = 9,779.45/x
  3. Step 3: Cross multiply
    31,966.08x = 47,947.37 × 9,779.45
  4. Step 4: Simplify right side
    31,966.08x = 468,899,141.76
  5. Step 5: Solve for x
    x = 468,899,141.76/31,966.08
  6. Step 6: Final answer
    x = 14,668.65

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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.