Home / 38,898.40-58,347.60-14,271.20

Finding the Fourth Proportional to 38,898.40, 58,347.60 and 14,271.20

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Solution

The fourth proportional to 38,898.40, 58,347.60 and 14,271.20 is: 21,406.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,898.40 : 58,347.60 = 14,271.20 : x
  2. Step 2: Convert to fraction form
    38,898.40/58,347.60 = 14,271.20/x
  3. Step 3: Cross multiply
    38,898.40x = 58,347.60 × 14,271.20
  4. Step 4: Simplify right side
    38,898.40x = 832,690,269.12
  5. Step 5: Solve for x
    x = 832,690,269.12/38,898.40
  6. Step 6: Final answer
    x = 21,406.80

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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.