Home / 42,869-59,179.72-28,552.66

Finding the Fourth Proportional to 42,869, 59,179.72 and 28,552.66

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Solution

The fourth proportional to 42,869, 59,179.72 and 28,552.66 is: 39,416.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,869 : 59,179.72 = 28,552.66 : x
  2. Step 2: Convert to fraction form
    42,869/59,179.72 = 28,552.66/x
  3. Step 3: Cross multiply
    42,869x = 59,179.72 × 28,552.66
  4. Step 4: Simplify right side
    42,869x = 1,689,738,424.06
  5. Step 5: Solve for x
    x = 1,689,738,424.06/42,869
  6. Step 6: Final answer
    x = 39,416.32

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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.