Home / 30,871.04-42,603.69-17,442.86

Finding the Fourth Proportional to 30,871.04, 42,603.69 and 17,442.86

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Solution

The fourth proportional to 30,871.04, 42,603.69 and 17,442.86 is: 24,072.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,871.04 : 42,603.69 = 17,442.86 : x
  2. Step 2: Convert to fraction form
    30,871.04/42,603.69 = 17,442.86/x
  3. Step 3: Cross multiply
    30,871.04x = 42,603.69 × 17,442.86
  4. Step 4: Simplify right side
    30,871.04x = 743,129,987.13
  5. Step 5: Solve for x
    x = 743,129,987.13/30,871.04
  6. Step 6: Final answer
    x = 24,072.08

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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.