Home / 38,765.49-53,482.37-21,988.77

Finding the Fourth Proportional to 38,765.49, 53,482.37 and 21,988.77

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Solution

The fourth proportional to 38,765.49, 53,482.37 and 21,988.77 is: 30,336.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,765.49 : 53,482.37 = 21,988.77 : x
  2. Step 2: Convert to fraction form
    38,765.49/53,482.37 = 21,988.77/x
  3. Step 3: Cross multiply
    38,765.49x = 53,482.37 × 21,988.77
  4. Step 4: Simplify right side
    38,765.49x = 1,176,011,532.98
  5. Step 5: Solve for x
    x = 1,176,011,532.98/38,765.49
  6. Step 6: Final answer
    x = 30,336.56

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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.