Home / 28,468.95-42,729.56-14,438.75

Finding the Fourth Proportional to 28,468.95, 42,729.56 and 14,438.75

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Solution

The fourth proportional to 28,468.95, 42,729.56 and 14,438.75 is: 21,671.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,468.95 : 42,729.56 = 14,438.75 : x
  2. Step 2: Convert to fraction form
    28,468.95/42,729.56 = 14,438.75/x
  3. Step 3: Cross multiply
    28,468.95x = 42,729.56 × 14,438.75
  4. Step 4: Simplify right side
    28,468.95x = 616,961,148.61
  5. Step 5: Solve for x
    x = 616,961,148.61/28,468.95
  6. Step 6: Final answer
    x = 21,671.37

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1.5x scale

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.