Home / 31,780.09-47,651.59-9,586.81

Finding the Fourth Proportional to 31,780.09, 47,651.59 and 9,586.81

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Solution

The fourth proportional to 31,780.09, 47,651.59 and 9,586.81 is: 14,374.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,780.09 : 47,651.59 = 9,586.81 : x
  2. Step 2: Convert to fraction form
    31,780.09/47,651.59 = 9,586.81/x
  3. Step 3: Cross multiply
    31,780.09x = 47,651.59 × 9,586.81
  4. Step 4: Simplify right side
    31,780.09x = 456,826,739.53
  5. Step 5: Solve for x
    x = 456,826,739.53/31,780.09
  6. Step 6: Final answer
    x = 14,374.62

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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.