Home / 28,787.67-39,726.32-16,040.84

Finding the Fourth Proportional to 28,787.67, 39,726.32 and 16,040.84

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Solution

The fourth proportional to 28,787.67, 39,726.32 and 16,040.84 is: 22,135.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,787.67 : 39,726.32 = 16,040.84 : x
  2. Step 2: Convert to fraction form
    28,787.67/39,726.32 = 16,040.84/x
  3. Step 3: Cross multiply
    28,787.67x = 39,726.32 × 16,040.84
  4. Step 4: Simplify right side
    28,787.67x = 637,243,264.07
  5. Step 5: Solve for x
    x = 637,243,264.07/28,787.67
  6. Step 6: Final answer
    x = 22,135.98

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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.