Home / 49,338.40-74,017.20-14,279.20

Finding the Fourth Proportional to 49,338.40, 74,017.20 and 14,279.20

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Solution

The fourth proportional to 49,338.40, 74,017.20 and 14,279.20 is: 21,421.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,338.40 : 74,017.20 = 14,279.20 : x
  2. Step 2: Convert to fraction form
    49,338.40/74,017.20 = 14,279.20/x
  3. Step 3: Cross multiply
    49,338.40x = 74,017.20 × 14,279.20
  4. Step 4: Simplify right side
    49,338.40x = 1,056,906,402.24
  5. Step 5: Solve for x
    x = 1,056,906,402.24/49,338.40
  6. Step 6: Final answer
    x = 21,421.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.