Home / 21,404.45-29,566.38-16,430.14

Finding the Fourth Proportional to 21,404.45, 29,566.38 and 16,430.14

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Solution

The fourth proportional to 21,404.45, 29,566.38 and 16,430.14 is: 22,695.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,404.45 : 29,566.38 = 16,430.14 : x
  2. Step 2: Convert to fraction form
    21,404.45/29,566.38 = 16,430.14/x
  3. Step 3: Cross multiply
    21,404.45x = 29,566.38 × 16,430.14
  4. Step 4: Simplify right side
    21,404.45x = 485,779,532.71
  5. Step 5: Solve for x
    x = 485,779,532.71/21,404.45
  6. Step 6: Final answer
    x = 22,695.26

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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.