Home / 30,817.32-42,527.96-16,670.28

Finding the Fourth Proportional to 30,817.32, 42,527.96 and 16,670.28

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Solution

The fourth proportional to 30,817.32, 42,527.96 and 16,670.28 is: 23,005.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,817.32 : 42,527.96 = 16,670.28 : x
  2. Step 2: Convert to fraction form
    30,817.32/42,527.96 = 16,670.28/x
  3. Step 3: Cross multiply
    30,817.32x = 42,527.96 × 16,670.28
  4. Step 4: Simplify right side
    30,817.32x = 708,953,001.03
  5. Step 5: Solve for x
    x = 708,953,001.03/30,817.32
  6. Step 6: Final answer
    x = 23,005.02

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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.