Home / 30,875.20-42,607.44-16,727.20

Finding the Fourth Proportional to 30,875.20, 42,607.44 and 16,727.20

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Solution

The fourth proportional to 30,875.20, 42,607.44 and 16,727.20 is: 23,083.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,875.20 : 42,607.44 = 16,727.20 : x
  2. Step 2: Convert to fraction form
    30,875.20/42,607.44 = 16,727.20/x
  3. Step 3: Cross multiply
    30,875.20x = 42,607.44 × 16,727.20
  4. Step 4: Simplify right side
    30,875.20x = 712,703,170.37
  5. Step 5: Solve for x
    x = 712,703,170.37/30,875.20
  6. Step 6: Final answer
    x = 23,083.35

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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.