Home / 28,374.68-42,559.02-12,580.00

Finding the Fourth Proportional to 28,374.68, 42,559.02 and 12,580.00

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Solution

The fourth proportional to 28,374.68, 42,559.02 and 12,580.00 is: 18,868.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,374.68 : 42,559.02 = 12,580.00 : x
  2. Step 2: Convert to fraction form
    28,374.68/42,559.02 = 12,580.00/x
  3. Step 3: Cross multiply
    28,374.68x = 42,559.02 × 12,580.00
  4. Step 4: Simplify right side
    28,374.68x = 535,392,365.20
  5. Step 5: Solve for x
    x = 535,392,365.20/28,374.68
  6. Step 6: Final answer
    x = 18,868.66

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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.