Home / 35,353.98-48,776.28-21,920.40

Finding the Fourth Proportional to 35,353.98, 48,776.28 and 21,920.40

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Solution

The fourth proportional to 35,353.98, 48,776.28 and 21,920.40 is: 30,242.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,353.98 : 48,776.28 = 21,920.40 : x
  2. Step 2: Convert to fraction form
    35,353.98/48,776.28 = 21,920.40/x
  3. Step 3: Cross multiply
    35,353.98x = 48,776.28 × 21,920.40
  4. Step 4: Simplify right side
    35,353.98x = 1,069,195,568.11
  5. Step 5: Solve for x
    x = 1,069,195,568.11/35,353.98
  6. Step 6: Final answer
    x = 30,242.58

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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.