Home / 30,972.93-42,743.44-17,543.99

Finding the Fourth Proportional to 30,972.93, 42,743.44 and 17,543.99

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Solution

The fourth proportional to 30,972.93, 42,743.44 and 17,543.99 is: 24,211.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,972.93 : 42,743.44 = 17,543.99 : x
  2. Step 2: Convert to fraction form
    30,972.93/42,743.44 = 17,543.99/x
  3. Step 3: Cross multiply
    30,972.93x = 42,743.44 × 17,543.99
  4. Step 4: Simplify right side
    30,972.93x = 749,890,483.93
  5. Step 5: Solve for x
    x = 749,890,483.93/30,972.93
  6. Step 6: Final answer
    x = 24,211.16

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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.