Home / 48,036.34-72,005.28-19,972.68

Finding the Fourth Proportional to 48,036.34, 72,005.28 and 19,972.68

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Solution

The fourth proportional to 48,036.34, 72,005.28 and 19,972.68 is: 29,938.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,036.34 : 72,005.28 = 19,972.68 : x
  2. Step 2: Convert to fraction form
    48,036.34/72,005.28 = 19,972.68/x
  3. Step 3: Cross multiply
    48,036.34x = 72,005.28 × 19,972.68
  4. Step 4: Simplify right side
    48,036.34x = 1,438,138,415.75
  5. Step 5: Solve for x
    x = 1,438,138,415.75/48,036.34
  6. Step 6: Final answer
    x = 29,938.55

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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.