Home / 30,803.07-42,508.20-16,655.88

Finding the Fourth Proportional to 30,803.07, 42,508.20 and 16,655.88

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Solution

The fourth proportional to 30,803.07, 42,508.20 and 16,655.88 is: 22,985.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,803.07 : 42,508.20 = 16,655.88 : x
  2. Step 2: Convert to fraction form
    30,803.07/42,508.20 = 16,655.88/x
  3. Step 3: Cross multiply
    30,803.07x = 42,508.20 × 16,655.88
  4. Step 4: Simplify right side
    30,803.07x = 708,011,265.68
  5. Step 5: Solve for x
    x = 708,011,265.68/30,803.07
  6. Step 6: Final answer
    x = 22,985.09

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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.