Home / 30,527.28-42,134.04-19,898.64

Finding the Fourth Proportional to 30,527.28, 42,134.04 and 19,898.64

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Solution

The fourth proportional to 30,527.28, 42,134.04 and 19,898.64 is: 27,464.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,527.28 : 42,134.04 = 19,898.64 : x
  2. Step 2: Convert to fraction form
    30,527.28/42,134.04 = 19,898.64/x
  3. Step 3: Cross multiply
    30,527.28x = 42,134.04 × 19,898.64
  4. Step 4: Simplify right side
    30,527.28x = 838,410,093.71
  5. Step 5: Solve for x
    x = 838,410,093.71/30,527.28
  6. Step 6: Final answer
    x = 27,464.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.