Home / 28,308.54-42,463.76-12,726.22

Finding the Fourth Proportional to 28,308.54, 42,463.76 and 12,726.22

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Solution

The fourth proportional to 28,308.54, 42,463.76 and 12,726.22 is: 19,089.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,308.54 : 42,463.76 = 12,726.22 : x
  2. Step 2: Convert to fraction form
    28,308.54/42,463.76 = 12,726.22/x
  3. Step 3: Cross multiply
    28,308.54x = 42,463.76 × 12,726.22
  4. Step 4: Simplify right side
    28,308.54x = 540,403,151.79
  5. Step 5: Solve for x
    x = 540,403,151.79/28,308.54
  6. Step 6: Final answer
    x = 19,089.76

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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.