Home / 52,088.40-71,881.56-28,215

Finding the Fourth Proportional to 52,088.40, 71,881.56 and 28,215

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Solution

The fourth proportional to 52,088.40, 71,881.56 and 28,215 is: 38,936.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,088.40 : 71,881.56 = 28,215 : x
  2. Step 2: Convert to fraction form
    52,088.40/71,881.56 = 28,215/x
  3. Step 3: Cross multiply
    52,088.40x = 71,881.56 × 28,215
  4. Step 4: Simplify right side
    52,088.40x = 2,028,138,215.40
  5. Step 5: Solve for x
    x = 2,028,138,215.40/52,088.40
  6. Step 6: Final answer
    x = 38,936.47

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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.