Home / 19,962.40-29,943.60-6,810.40

Finding the Fourth Proportional to 19,962.40, 29,943.60 and 6,810.40

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Solution

The fourth proportional to 19,962.40, 29,943.60 and 6,810.40 is: 10,215.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,962.40 : 29,943.60 = 6,810.40 : x
  2. Step 2: Convert to fraction form
    19,962.40/29,943.60 = 6,810.40/x
  3. Step 3: Cross multiply
    19,962.40x = 29,943.60 × 6,810.40
  4. Step 4: Simplify right side
    19,962.40x = 203,927,893.44
  5. Step 5: Solve for x
    x = 203,927,893.44/19,962.40
  6. Step 6: Final answer
    x = 10,215.60

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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.