Home / 38,386.58-52,972.52-21,390.75

Finding the Fourth Proportional to 38,386.58, 52,972.52 and 21,390.75

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Solution

The fourth proportional to 38,386.58, 52,972.52 and 21,390.75 is: 29,518.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,386.58 : 52,972.52 = 21,390.75 : x
  2. Step 2: Convert to fraction form
    38,386.58/52,972.52 = 21,390.75/x
  3. Step 3: Cross multiply
    38,386.58x = 52,972.52 × 21,390.75
  4. Step 4: Simplify right side
    38,386.58x = 1,133,121,825.24
  5. Step 5: Solve for x
    x = 1,133,121,825.24/38,386.58
  6. Step 6: Final answer
    x = 29,518.70

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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.