Home / 30,376.24-45,571.02-9,319.18

Finding the Fourth Proportional to 30,376.24, 45,571.02 and 9,319.18

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Solution

The fourth proportional to 30,376.24, 45,571.02 and 9,319.18 is: 13,980.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,376.24 : 45,571.02 = 9,319.18 : x
  2. Step 2: Convert to fraction form
    30,376.24/45,571.02 = 9,319.18/x
  3. Step 3: Cross multiply
    30,376.24x = 45,571.02 × 9,319.18
  4. Step 4: Simplify right side
    30,376.24x = 424,684,538.16
  5. Step 5: Solve for x
    x = 424,684,538.16/30,376.24
  6. Step 6: Final answer
    x = 13,980.81

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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.