Home / 29,435.95-40,620.37-16,689.99

Finding the Fourth Proportional to 29,435.95, 40,620.37 and 16,689.99

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Solution

The fourth proportional to 29,435.95, 40,620.37 and 16,689.99 is: 23,031.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,435.95 : 40,620.37 = 16,689.99 : x
  2. Step 2: Convert to fraction form
    29,435.95/40,620.37 = 16,689.99/x
  3. Step 3: Cross multiply
    29,435.95x = 40,620.37 × 16,689.99
  4. Step 4: Simplify right side
    29,435.95x = 677,953,569.10
  5. Step 5: Solve for x
    x = 677,953,569.10/29,435.95
  6. Step 6: Final answer
    x = 23,031.48

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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.