Home / 21,488.55-29,652.71-11,927.69

Finding the Fourth Proportional to 21,488.55, 29,652.71 and 11,927.69

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Solution

The fourth proportional to 21,488.55, 29,652.71 and 11,927.69 is: 16,459.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,488.55 : 29,652.71 = 11,927.69 : x
  2. Step 2: Convert to fraction form
    21,488.55/29,652.71 = 11,927.69/x
  3. Step 3: Cross multiply
    21,488.55x = 29,652.71 × 11,927.69
  4. Step 4: Simplify right side
    21,488.55x = 353,688,214.10
  5. Step 5: Solve for x
    x = 353,688,214.10/21,488.55
  6. Step 6: Final answer
    x = 16,459.38

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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.