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Finding the Fourth Proportional to 48,271.70, 72,407.55 and 13,214.90

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Solution

The fourth proportional to 48,271.70, 72,407.55 and 13,214.90 is: 19,822.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,271.70 : 72,407.55 = 13,214.90 : x
  2. Step 2: Convert to fraction form
    48,271.70/72,407.55 = 13,214.90/x
  3. Step 3: Cross multiply
    48,271.70x = 72,407.55 × 13,214.90
  4. Step 4: Simplify right side
    48,271.70x = 956,858,532.50
  5. Step 5: Solve for x
    x = 956,858,532.50/48,271.70
  6. Step 6: Final answer
    x = 19,822.35

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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.