Home / 42,955.36-64,407.15-19,258.62

Finding the Fourth Proportional to 42,955.36, 64,407.15 and 19,258.62

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Solution

The fourth proportional to 42,955.36, 64,407.15 and 19,258.62 is: 28,876.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,955.36 : 64,407.15 = 19,258.62 : x
  2. Step 2: Convert to fraction form
    42,955.36/64,407.15 = 19,258.62/x
  3. Step 3: Cross multiply
    42,955.36x = 64,407.15 × 19,258.62
  4. Step 4: Simplify right side
    42,955.36x = 1,240,392,505.10
  5. Step 5: Solve for x
    x = 1,240,392,505.10/42,955.36
  6. Step 6: Final answer
    x = 28,876.32

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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.