Home / 31,323.64-46,980.90-9,131.05

Finding the Fourth Proportional to 31,323.64, 46,980.90 and 9,131.05

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Solution

The fourth proportional to 31,323.64, 46,980.90 and 9,131.05 is: 13,695.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,323.64 : 46,980.90 = 9,131.05 : x
  2. Step 2: Convert to fraction form
    31,323.64/46,980.90 = 9,131.05/x
  3. Step 3: Cross multiply
    31,323.64x = 46,980.90 × 9,131.05
  4. Step 4: Simplify right side
    31,323.64x = 428,984,946.95
  5. Step 5: Solve for x
    x = 428,984,946.95/31,323.64
  6. Step 6: Final answer
    x = 13,695.25

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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.