Home / 31,966.36-47,949.64-9,779.63

Finding the Fourth Proportional to 31,966.36, 47,949.64 and 9,779.63

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Solution

The fourth proportional to 31,966.36, 47,949.64 and 9,779.63 is: 14,669.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,966.36 : 47,949.64 = 9,779.63 : x
  2. Step 2: Convert to fraction form
    31,966.36/47,949.64 = 9,779.63/x
  3. Step 3: Cross multiply
    31,966.36x = 47,949.64 × 9,779.63
  4. Step 4: Simplify right side
    31,966.36x = 468,929,473.64
  5. Step 5: Solve for x
    x = 468,929,473.64/31,966.36
  6. Step 6: Final answer
    x = 14,669.47

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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.