Home / 30,872.16-42,603.71-16,725.02

Finding the Fourth Proportional to 30,872.16, 42,603.71 and 16,725.02

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Solution

The fourth proportional to 30,872.16, 42,603.71 and 16,725.02 is: 23,080.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,872.16 : 42,603.71 = 16,725.02 : x
  2. Step 2: Convert to fraction form
    30,872.16/42,603.71 = 16,725.02/x
  3. Step 3: Cross multiply
    30,872.16x = 42,603.71 × 16,725.02
  4. Step 4: Simplify right side
    30,872.16x = 712,547,605.18
  5. Step 5: Solve for x
    x = 712,547,605.18/30,872.16
  6. Step 6: Final answer
    x = 23,080.59

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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.