Home / 30,875.54-42,608.13-16,728.35

Finding the Fourth Proportional to 30,875.54, 42,608.13 and 16,728.35

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Solution

The fourth proportional to 30,875.54, 42,608.13 and 16,728.35 is: 23,085.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,875.54 : 42,608.13 = 16,728.35 : x
  2. Step 2: Convert to fraction form
    30,875.54/42,608.13 = 16,728.35/x
  3. Step 3: Cross multiply
    30,875.54x = 42,608.13 × 16,728.35
  4. Step 4: Simplify right side
    30,875.54x = 712,763,711.49
  5. Step 5: Solve for x
    x = 712,763,711.49/30,875.54
  6. Step 6: Final answer
    x = 23,085.06

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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.