Home / 38,756.20-53,482.98-21,988.84

Finding the Fourth Proportional to 38,756.20, 53,482.98 and 21,988.84

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Solution

The fourth proportional to 38,756.20, 53,482.98 and 21,988.84 is: 30,344.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,756.20 : 53,482.98 = 21,988.84 : x
  2. Step 2: Convert to fraction form
    38,756.20/53,482.98 = 21,988.84/x
  3. Step 3: Cross multiply
    38,756.20x = 53,482.98 × 21,988.84
  4. Step 4: Simplify right side
    38,756.20x = 1,176,028,689.94
  5. Step 5: Solve for x
    x = 1,176,028,689.94/38,756.20
  6. Step 6: Final answer
    x = 30,344.27

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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.