Home / 28,463.94-42,702.84-12,877.38

Finding the Fourth Proportional to 28,463.94, 42,702.84 and 12,877.38

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Solution

The fourth proportional to 28,463.94, 42,702.84 and 12,877.38 is: 19,319.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,463.94 : 42,702.84 = 12,877.38 : x
  2. Step 2: Convert to fraction form
    28,463.94/42,702.84 = 12,877.38/x
  3. Step 3: Cross multiply
    28,463.94x = 42,702.84 × 12,877.38
  4. Step 4: Simplify right side
    28,463.94x = 549,900,697.76
  5. Step 5: Solve for x
    x = 549,900,697.76/28,463.94
  6. Step 6: Final answer
    x = 19,319.21

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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.