Home / 28,045.84-38,699.28-17,431.60

Finding the Fourth Proportional to 28,045.84, 38,699.28 and 17,431.60

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Solution

The fourth proportional to 28,045.84, 38,699.28 and 17,431.60 is: 24,053.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,045.84 : 38,699.28 = 17,431.60 : x
  2. Step 2: Convert to fraction form
    28,045.84/38,699.28 = 17,431.60/x
  3. Step 3: Cross multiply
    28,045.84x = 38,699.28 × 17,431.60
  4. Step 4: Simplify right side
    28,045.84x = 674,590,369.25
  5. Step 5: Solve for x
    x = 674,590,369.25/28,045.84
  6. Step 6: Final answer
    x = 24,053.13

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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.