Home / 55,019.28-82,528.86-19,947.36

Finding the Fourth Proportional to 55,019.28, 82,528.86 and 19,947.36

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Solution

The fourth proportional to 55,019.28, 82,528.86 and 19,947.36 is: 29,921.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,019.28 : 82,528.86 = 19,947.36 : x
  2. Step 2: Convert to fraction form
    55,019.28/82,528.86 = 19,947.36/x
  3. Step 3: Cross multiply
    55,019.28x = 82,528.86 × 19,947.36
  4. Step 4: Simplify right side
    55,019.28x = 1,646,232,880.81
  5. Step 5: Solve for x
    x = 1,646,232,880.81/55,019.28
  6. Step 6: Final answer
    x = 29,921.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.