Home / 42,478.79-58,623.62-28,113.84

Finding the Fourth Proportional to 42,478.79, 58,623.62 and 28,113.84

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Solution

The fourth proportional to 42,478.79, 58,623.62 and 28,113.84 is: 38,799.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,478.79 : 58,623.62 = 28,113.84 : x
  2. Step 2: Convert to fraction form
    42,478.79/58,623.62 = 28,113.84/x
  3. Step 3: Cross multiply
    42,478.79x = 58,623.62 × 28,113.84
  4. Step 4: Simplify right side
    42,478.79x = 1,648,134,932.33
  5. Step 5: Solve for x
    x = 1,648,134,932.33/42,478.79
  6. Step 6: Final answer
    x = 38,799.01

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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.