Home / 30,870.61-42,599.33-17,442.43

Finding the Fourth Proportional to 30,870.61, 42,599.33 and 17,442.43

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Solution

The fourth proportional to 30,870.61, 42,599.33 and 17,442.43 is: 24,069.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,870.61 : 42,599.33 = 17,442.43 : x
  2. Step 2: Convert to fraction form
    30,870.61/42,599.33 = 17,442.43/x
  3. Step 3: Cross multiply
    30,870.61x = 42,599.33 × 17,442.43
  4. Step 4: Simplify right side
    30,870.61x = 743,035,831.57
  5. Step 5: Solve for x
    x = 743,035,831.57/30,870.61
  6. Step 6: Final answer
    x = 24,069.36

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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.