Home / 28,309.25-42,463.98-8,587.98

Finding the Fourth Proportional to 28,309.25, 42,463.98 and 8,587.98

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Solution

The fourth proportional to 28,309.25, 42,463.98 and 8,587.98 is: 12,882.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,309.25 : 42,463.98 = 8,587.98 : x
  2. Step 2: Convert to fraction form
    28,309.25/42,463.98 = 8,587.98/x
  3. Step 3: Cross multiply
    28,309.25x = 42,463.98 × 8,587.98
  4. Step 4: Simplify right side
    28,309.25x = 364,679,810.96
  5. Step 5: Solve for x
    x = 364,679,810.96/28,309.25
  6. Step 6: Final answer
    x = 12,882.00

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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.