Home / 30,837.03-42,555.10-16,689.87

Finding the Fourth Proportional to 30,837.03, 42,555.10 and 16,689.87

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Solution

The fourth proportional to 30,837.03, 42,555.10 and 16,689.87 is: 23,032.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,837.03 : 42,555.10 = 16,689.87 : x
  2. Step 2: Convert to fraction form
    30,837.03/42,555.10 = 16,689.87/x
  3. Step 3: Cross multiply
    30,837.03x = 42,555.10 × 16,689.87
  4. Step 4: Simplify right side
    30,837.03x = 710,239,086.84
  5. Step 5: Solve for x
    x = 710,239,086.84/30,837.03
  6. Step 6: Final answer
    x = 23,032.02

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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.