Home / 19,621.40-29,429.60-6,470.51

Finding the Fourth Proportional to 19,621.40, 29,429.60 and 6,470.51

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Solution

The fourth proportional to 19,621.40, 29,429.60 and 6,470.51 is: 9,704.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,621.40 : 29,429.60 = 6,470.51 : x
  2. Step 2: Convert to fraction form
    19,621.40/29,429.60 = 6,470.51/x
  3. Step 3: Cross multiply
    19,621.40x = 29,429.60 × 6,470.51
  4. Step 4: Simplify right side
    19,621.40x = 190,424,341.60
  5. Step 5: Solve for x
    x = 190,424,341.60/19,621.40
  6. Step 6: Final answer
    x = 9,704.93

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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.