Home / 19,154.55-28,731.84-5,303.55

Finding the Fourth Proportional to 19,154.55, 28,731.84 and 5,303.55

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Solution

The fourth proportional to 19,154.55, 28,731.84 and 5,303.55 is: 7,955.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,154.55 : 28,731.84 = 5,303.55 : x
  2. Step 2: Convert to fraction form
    19,154.55/28,731.84 = 5,303.55/x
  3. Step 3: Cross multiply
    19,154.55x = 28,731.84 × 5,303.55
  4. Step 4: Simplify right side
    19,154.55x = 152,380,837.89
  5. Step 5: Solve for x
    x = 152,380,837.89/19,154.55
  6. Step 6: Final answer
    x = 7,955.33

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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.