Home / 28,603.51-42,812.10-25,875.43

Finding the Fourth Proportional to 28,603.51, 42,812.10 and 25,875.43

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Solution

The fourth proportional to 28,603.51, 42,812.10 and 25,875.43 is: 38,728.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,603.51 : 42,812.10 = 25,875.43 : x
  2. Step 2: Convert to fraction form
    28,603.51/42,812.10 = 25,875.43/x
  3. Step 3: Cross multiply
    28,603.51x = 42,812.10 × 25,875.43
  4. Step 4: Simplify right side
    28,603.51x = 1,107,781,496.70
  5. Step 5: Solve for x
    x = 1,107,781,496.70/28,603.51
  6. Step 6: Final answer
    x = 38,728.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.