Home / 30,803.10-42,508.32-16,655.97

Finding the Fourth Proportional to 30,803.10, 42,508.32 and 16,655.97

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Solution

The fourth proportional to 30,803.10, 42,508.32 and 16,655.97 is: 22,985.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,803.10 : 42,508.32 = 16,655.97 : x
  2. Step 2: Convert to fraction form
    30,803.10/42,508.32 = 16,655.97/x
  3. Step 3: Cross multiply
    30,803.10x = 42,508.32 × 16,655.97
  4. Step 4: Simplify right side
    30,803.10x = 708,017,302.67
  5. Step 5: Solve for x
    x = 708,017,302.67/30,803.10
  6. Step 6: Final answer
    x = 22,985.26

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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.