Home / 43,369.48-65,035.80-13,779.40

Finding the Fourth Proportional to 43,369.48, 65,035.80 and 13,779.40

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Solution

The fourth proportional to 43,369.48, 65,035.80 and 13,779.40 is: 20,663.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,369.48 : 65,035.80 = 13,779.40 : x
  2. Step 2: Convert to fraction form
    43,369.48/65,035.80 = 13,779.40/x
  3. Step 3: Cross multiply
    43,369.48x = 65,035.80 × 13,779.40
  4. Step 4: Simplify right side
    43,369.48x = 896,154,302.52
  5. Step 5: Solve for x
    x = 896,154,302.52/43,369.48
  6. Step 6: Final answer
    x = 20,663.25

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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.