Home / 19,980.04-29,970.05-5,940.01

Finding the Fourth Proportional to 19,980.04, 29,970.05 and 5,940.01

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Solution

The fourth proportional to 19,980.04, 29,970.05 and 5,940.01 is: 8,910.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,980.04 : 29,970.05 = 5,940.01 : x
  2. Step 2: Convert to fraction form
    19,980.04/29,970.05 = 5,940.01/x
  3. Step 3: Cross multiply
    19,980.04x = 29,970.05 × 5,940.01
  4. Step 4: Simplify right side
    19,980.04x = 178,022,269.29
  5. Step 5: Solve for x
    x = 178,022,269.29/19,980.04
  6. Step 6: Final answer
    x = 8,910.01

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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.