Home / 15,980.56-23,970.76-4,292.80

Finding the Fourth Proportional to 15,980.56, 23,970.76 and 4,292.80

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Solution

The fourth proportional to 15,980.56, 23,970.76 and 4,292.80 is: 6,439.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,980.56 : 23,970.76 = 4,292.80 : x
  2. Step 2: Convert to fraction form
    15,980.56/23,970.76 = 4,292.80/x
  3. Step 3: Cross multiply
    15,980.56x = 23,970.76 × 4,292.80
  4. Step 4: Simplify right side
    15,980.56x = 102,901,678.53
  5. Step 5: Solve for x
    x = 102,901,678.53/15,980.56
  6. Step 6: Final answer
    x = 6,439.18

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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.