Home / 19,947.69-29,921.45-5,155.35

Finding the Fourth Proportional to 19,947.69, 29,921.45 and 5,155.35

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Solution

The fourth proportional to 19,947.69, 29,921.45 and 5,155.35 is: 7,733.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,947.69 : 29,921.45 = 5,155.35 : x
  2. Step 2: Convert to fraction form
    19,947.69/29,921.45 = 5,155.35/x
  3. Step 3: Cross multiply
    19,947.69x = 29,921.45 × 5,155.35
  4. Step 4: Simplify right side
    19,947.69x = 154,255,547.26
  5. Step 5: Solve for x
    x = 154,255,547.26/19,947.69
  6. Step 6: Final answer
    x = 7,733.00

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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.