Home / 28,158.95-38,795.62-23,115.18

Finding the Fourth Proportional to 28,158.95, 38,795.62 and 23,115.18

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Solution

The fourth proportional to 28,158.95, 38,795.62 and 23,115.18 is: 31,846.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,158.95 : 38,795.62 = 23,115.18 : x
  2. Step 2: Convert to fraction form
    28,158.95/38,795.62 = 23,115.18/x
  3. Step 3: Cross multiply
    28,158.95x = 38,795.62 × 23,115.18
  4. Step 4: Simplify right side
    28,158.95x = 896,767,739.51
  5. Step 5: Solve for x
    x = 896,767,739.51/28,158.95
  6. Step 6: Final answer
    x = 31,846.63

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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.