Home / 28,374.84-39,143.25-17,038.89

Finding the Fourth Proportional to 28,374.84, 39,143.25 and 17,038.89

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Solution

The fourth proportional to 28,374.84, 39,143.25 and 17,038.89 is: 23,505.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,374.84 : 39,143.25 = 17,038.89 : x
  2. Step 2: Convert to fraction form
    28,374.84/39,143.25 = 17,038.89/x
  3. Step 3: Cross multiply
    28,374.84x = 39,143.25 × 17,038.89
  4. Step 4: Simplify right side
    28,374.84x = 666,957,530.99
  5. Step 5: Solve for x
    x = 666,957,530.99/28,374.84
  6. Step 6: Final answer
    x = 23,505.24

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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.