Home / 42,955.72-64,407.67-19,258.97

Finding the Fourth Proportional to 42,955.72, 64,407.67 and 19,258.97

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Solution

The fourth proportional to 42,955.72, 64,407.67 and 19,258.97 is: 28,876.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,955.72 : 64,407.67 = 19,258.97 : x
  2. Step 2: Convert to fraction form
    42,955.72/64,407.67 = 19,258.97/x
  3. Step 3: Cross multiply
    42,955.72x = 64,407.67 × 19,258.97
  4. Step 4: Simplify right side
    42,955.72x = 1,240,425,014.11
  5. Step 5: Solve for x
    x = 1,240,425,014.11/42,955.72
  6. Step 6: Final answer
    x = 28,876.83

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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.