Home / 19,779.90-27,296.53-10,827.21

Finding the Fourth Proportional to 19,779.90, 27,296.53 and 10,827.21

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Solution

The fourth proportional to 19,779.90, 27,296.53 and 10,827.21 is: 14,941.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,779.90 : 27,296.53 = 10,827.21 : x
  2. Step 2: Convert to fraction form
    19,779.90/27,296.53 = 10,827.21/x
  3. Step 3: Cross multiply
    19,779.90x = 27,296.53 × 10,827.21
  4. Step 4: Simplify right side
    19,779.90x = 295,545,337.88
  5. Step 5: Solve for x
    x = 295,545,337.88/19,779.90
  6. Step 6: Final answer
    x = 14,941.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.