Home / 28,877.61-39,814.82-22,079.98

Finding the Fourth Proportional to 28,877.61, 39,814.82 and 22,079.98

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Solution

The fourth proportional to 28,877.61, 39,814.82 and 22,079.98 is: 30,442.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,877.61 : 39,814.82 = 22,079.98 : x
  2. Step 2: Convert to fraction form
    28,877.61/39,814.82 = 22,079.98/x
  3. Step 3: Cross multiply
    28,877.61x = 39,814.82 × 22,079.98
  4. Step 4: Simplify right side
    28,877.61x = 879,110,165.41
  5. Step 5: Solve for x
    x = 879,110,165.41/28,877.61
  6. Step 6: Final answer
    x = 30,442.62

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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.