Home / 28,305.51-42,402.90-23,315.05

Finding the Fourth Proportional to 28,305.51, 42,402.90 and 23,315.05

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Solution

The fourth proportional to 28,305.51, 42,402.90 and 23,315.05 is: 34,926.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,305.51 : 42,402.90 = 23,315.05 : x
  2. Step 2: Convert to fraction form
    28,305.51/42,402.90 = 23,315.05/x
  3. Step 3: Cross multiply
    28,305.51x = 42,402.90 × 23,315.05
  4. Step 4: Simplify right side
    28,305.51x = 988,625,733.65
  5. Step 5: Solve for x
    x = 988,625,733.65/28,305.51
  6. Step 6: Final answer
    x = 34,926.97

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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.