Home / 30,780.27-42,476.61-16,633.08

Finding the Fourth Proportional to 30,780.27, 42,476.61 and 16,633.08

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Solution

The fourth proportional to 30,780.27, 42,476.61 and 16,633.08 is: 22,953.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,780.27 : 42,476.61 = 16,633.08 : x
  2. Step 2: Convert to fraction form
    30,780.27/42,476.61 = 16,633.08/x
  3. Step 3: Cross multiply
    30,780.27x = 42,476.61 × 16,633.08
  4. Step 4: Simplify right side
    30,780.27x = 706,516,852.26
  5. Step 5: Solve for x
    x = 706,516,852.26/30,780.27
  6. Step 6: Final answer
    x = 22,953.56

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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.