Home / 31,968.09-47,950.12-9,779.70

Finding the Fourth Proportional to 31,968.09, 47,950.12 and 9,779.70

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Solution

The fourth proportional to 31,968.09, 47,950.12 and 9,779.70 is: 14,668.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,968.09 : 47,950.12 = 9,779.70 : x
  2. Step 2: Convert to fraction form
    31,968.09/47,950.12 = 9,779.70/x
  3. Step 3: Cross multiply
    31,968.09x = 47,950.12 × 9,779.70
  4. Step 4: Simplify right side
    31,968.09x = 468,937,739.67
  5. Step 5: Solve for x
    x = 468,937,739.67/31,968.09
  6. Step 6: Final answer
    x = 14,668.93

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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.