Home / 30,470.30-42,048.24-16,858.86

Finding the Fourth Proportional to 30,470.30, 42,048.24 and 16,858.86

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Solution

The fourth proportional to 30,470.30, 42,048.24 and 16,858.86 is: 23,264.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,470.30 : 42,048.24 = 16,858.86 : x
  2. Step 2: Convert to fraction form
    30,470.30/42,048.24 = 16,858.86/x
  3. Step 3: Cross multiply
    30,470.30x = 42,048.24 × 16,858.86
  4. Step 4: Simplify right side
    30,470.30x = 708,885,391.41
  5. Step 5: Solve for x
    x = 708,885,391.41/30,470.30
  6. Step 6: Final answer
    x = 23,264.80

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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.