Home / 42,955.16-59,260.58-28,812.56

Finding the Fourth Proportional to 42,955.16, 59,260.58 and 28,812.56

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Solution

The fourth proportional to 42,955.16, 59,260.58 and 28,812.56 is: 39,749.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,955.16 : 59,260.58 = 28,812.56 : x
  2. Step 2: Convert to fraction form
    42,955.16/59,260.58 = 28,812.56/x
  3. Step 3: Cross multiply
    42,955.16x = 59,260.58 × 28,812.56
  4. Step 4: Simplify right side
    42,955.16x = 1,707,449,016.88
  5. Step 5: Solve for x
    x = 1,707,449,016.88/42,955.16
  6. Step 6: Final answer
    x = 39,749.57

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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.