Home / 42,976.28-59,309.88-28,611.32

Finding the Fourth Proportional to 42,976.28, 59,309.88 and 28,611.32

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Solution

The fourth proportional to 42,976.28, 59,309.88 and 28,611.32 is: 39,485.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,976.28 : 59,309.88 = 28,611.32 : x
  2. Step 2: Convert to fraction form
    42,976.28/59,309.88 = 28,611.32/x
  3. Step 3: Cross multiply
    42,976.28x = 59,309.88 × 28,611.32
  4. Step 4: Simplify right side
    42,976.28x = 1,696,933,955.84
  5. Step 5: Solve for x
    x = 1,696,933,955.84/42,976.28
  6. Step 6: Final answer
    x = 39,485.36

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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.