Home / 19,180.65-28,735.34-10,422.93

Finding the Fourth Proportional to 19,180.65, 28,735.34 and 10,422.93

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Solution

The fourth proportional to 19,180.65, 28,735.34 and 10,422.93 is: 15,615.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,180.65 : 28,735.34 = 10,422.93 : x
  2. Step 2: Convert to fraction form
    19,180.65/28,735.34 = 10,422.93/x
  3. Step 3: Cross multiply
    19,180.65x = 28,735.34 × 10,422.93
  4. Step 4: Simplify right side
    19,180.65x = 299,506,385.23
  5. Step 5: Solve for x
    x = 299,506,385.23/19,180.65
  6. Step 6: Final answer
    x = 15,615.03

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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.