Home / 19,973.80-29,979.90-10,124.20

Finding the Fourth Proportional to 19,973.80, 29,979.90 and 10,124.20

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Solution

The fourth proportional to 19,973.80, 29,979.90 and 10,124.20 is: 15,196.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,973.80 : 29,979.90 = 10,124.20 : x
  2. Step 2: Convert to fraction form
    19,973.80/29,979.90 = 10,124.20/x
  3. Step 3: Cross multiply
    19,973.80x = 29,979.90 × 10,124.20
  4. Step 4: Simplify right side
    19,973.80x = 303,522,503.58
  5. Step 5: Solve for x
    x = 303,522,503.58/19,973.80
  6. Step 6: Final answer
    x = 15,196.03

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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.