Home / 19,237.40-28,864.20-10,478.60

Finding the Fourth Proportional to 19,237.40, 28,864.20 and 10,478.60

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Solution

The fourth proportional to 19,237.40, 28,864.20 and 10,478.60 is: 15,722.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,237.40 : 28,864.20 = 10,478.60 : x
  2. Step 2: Convert to fraction form
    19,237.40/28,864.20 = 10,478.60/x
  3. Step 3: Cross multiply
    19,237.40x = 28,864.20 × 10,478.60
  4. Step 4: Simplify right side
    19,237.40x = 302,456,406.12
  5. Step 5: Solve for x
    x = 302,456,406.12/19,237.40
  6. Step 6: Final answer
    x = 15,722.31

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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.