Home / 30,867.56-42,596.91-17,438.79

Finding the Fourth Proportional to 30,867.56, 42,596.91 and 17,438.79

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Solution

The fourth proportional to 30,867.56, 42,596.91 and 17,438.79 is: 24,065.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,867.56 : 42,596.91 = 17,438.79 : x
  2. Step 2: Convert to fraction form
    30,867.56/42,596.91 = 17,438.79/x
  3. Step 3: Cross multiply
    30,867.56x = 42,596.91 × 17,438.79
  4. Step 4: Simplify right side
    30,867.56x = 742,838,568.14
  5. Step 5: Solve for x
    x = 742,838,568.14/30,867.56
  6. Step 6: Final answer
    x = 24,065.35

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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.