Home / 30,812.41-42,521.37-18,065.92

Finding the Fourth Proportional to 30,812.41, 42,521.37 and 18,065.92

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Solution

The fourth proportional to 30,812.41, 42,521.37 and 18,065.92 is: 24,931.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,812.41 : 42,521.37 = 18,065.92 : x
  2. Step 2: Convert to fraction form
    30,812.41/42,521.37 = 18,065.92/x
  3. Step 3: Cross multiply
    30,812.41x = 42,521.37 × 18,065.92
  4. Step 4: Simplify right side
    30,812.41x = 768,187,668.71
  5. Step 5: Solve for x
    x = 768,187,668.71/30,812.41
  6. Step 6: Final answer
    x = 24,931.11

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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.