Home / 31,050.40-46,571.04-9,987.68

Finding the Fourth Proportional to 31,050.40, 46,571.04 and 9,987.68

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Solution

The fourth proportional to 31,050.40, 46,571.04 and 9,987.68 is: 14,980.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,050.40 : 46,571.04 = 9,987.68 : x
  2. Step 2: Convert to fraction form
    31,050.40/46,571.04 = 9,987.68/x
  3. Step 3: Cross multiply
    31,050.40x = 46,571.04 × 9,987.68
  4. Step 4: Simplify right side
    31,050.40x = 465,136,644.79
  5. Step 5: Solve for x
    x = 465,136,644.79/31,050.40
  6. Step 6: Final answer
    x = 14,980.05

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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.