Home / 30,837.04-42,555.10-16,689.88

Finding the Fourth Proportional to 30,837.04, 42,555.10 and 16,689.88

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Solution

The fourth proportional to 30,837.04, 42,555.10 and 16,689.88 is: 23,032.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,837.04 : 42,555.10 = 16,689.88 : x
  2. Step 2: Convert to fraction form
    30,837.04/42,555.10 = 16,689.88/x
  3. Step 3: Cross multiply
    30,837.04x = 42,555.10 × 16,689.88
  4. Step 4: Simplify right side
    30,837.04x = 710,239,512.39
  5. Step 5: Solve for x
    x = 710,239,512.39/30,837.04
  6. Step 6: Final answer
    x = 23,032.03

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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.