Home / 48,268.20-72,402.30-13,211.40

Finding the Fourth Proportional to 48,268.20, 72,402.30 and 13,211.40

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Solution

The fourth proportional to 48,268.20, 72,402.30 and 13,211.40 is: 19,817.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,268.20 : 72,402.30 = 13,211.40 : x
  2. Step 2: Convert to fraction form
    48,268.20/72,402.30 = 13,211.40/x
  3. Step 3: Cross multiply
    48,268.20x = 72,402.30 × 13,211.40
  4. Step 4: Simplify right side
    48,268.20x = 956,535,746.22
  5. Step 5: Solve for x
    x = 956,535,746.22/48,268.20
  6. Step 6: Final answer
    x = 19,817.10

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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.