Home / 38,981.52-53,792.46-21,985.26

Finding the Fourth Proportional to 38,981.52, 53,792.46 and 21,985.26

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Solution

The fourth proportional to 38,981.52, 53,792.46 and 21,985.26 is: 30,338.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,981.52 : 53,792.46 = 21,985.26 : x
  2. Step 2: Convert to fraction form
    38,981.52/53,792.46 = 21,985.26/x
  3. Step 3: Cross multiply
    38,981.52x = 53,792.46 × 21,985.26
  4. Step 4: Simplify right side
    38,981.52x = 1,182,641,219.14
  5. Step 5: Solve for x
    x = 1,182,641,219.14/38,981.52
  6. Step 6: Final answer
    x = 30,338.51

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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.