Home / 19,320.28-28,980.57-6,840.35

Finding the Fourth Proportional to 19,320.28, 28,980.57 and 6,840.35

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Solution

The fourth proportional to 19,320.28, 28,980.57 and 6,840.35 is: 10,260.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320.28 : 28,980.57 = 6,840.35 : x
  2. Step 2: Convert to fraction form
    19,320.28/28,980.57 = 6,840.35/x
  3. Step 3: Cross multiply
    19,320.28x = 28,980.57 × 6,840.35
  4. Step 4: Simplify right side
    19,320.28x = 198,237,242.00
  5. Step 5: Solve for x
    x = 198,237,242.00/19,320.28
  6. Step 6: Final answer
    x = 10,260.58

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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.