Home / 38,974.68-53,784.86-21,069.52

Finding the Fourth Proportional to 38,974.68, 53,784.86 and 21,069.52

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Solution

The fourth proportional to 38,974.68, 53,784.86 and 21,069.52 is: 29,075.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,974.68 : 53,784.86 = 21,069.52 : x
  2. Step 2: Convert to fraction form
    38,974.68/53,784.86 = 21,069.52/x
  3. Step 3: Cross multiply
    38,974.68x = 53,784.86 × 21,069.52
  4. Step 4: Simplify right side
    38,974.68x = 1,133,220,943.66
  5. Step 5: Solve for x
    x = 1,133,220,943.66/38,974.68
  6. Step 6: Final answer
    x = 29,075.82

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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.