Home / 30,857.28-42,583.17-16,710.13

Finding the Fourth Proportional to 30,857.28, 42,583.17 and 16,710.13

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Solution

The fourth proportional to 30,857.28, 42,583.17 and 16,710.13 is: 23,060.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,857.28 : 42,583.17 = 16,710.13 : x
  2. Step 2: Convert to fraction form
    30,857.28/42,583.17 = 16,710.13/x
  3. Step 3: Cross multiply
    30,857.28x = 42,583.17 × 16,710.13
  4. Step 4: Simplify right side
    30,857.28x = 711,570,306.51
  5. Step 5: Solve for x
    x = 711,570,306.51/30,857.28
  6. Step 6: Final answer
    x = 23,060.05

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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.