Home / 30,837.02-42,555.12-16,689.92

Finding the Fourth Proportional to 30,837.02, 42,555.12 and 16,689.92

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Solution

The fourth proportional to 30,837.02, 42,555.12 and 16,689.92 is: 23,032.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,837.02 : 42,555.12 = 16,689.92 : x
  2. Step 2: Convert to fraction form
    30,837.02/42,555.12 = 16,689.92/x
  3. Step 3: Cross multiply
    30,837.02x = 42,555.12 × 16,689.92
  4. Step 4: Simplify right side
    30,837.02x = 710,241,548.39
  5. Step 5: Solve for x
    x = 710,241,548.39/30,837.02
  6. Step 6: Final answer
    x = 23,032.11

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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.