Home / 21,404.95-29,567.07-16,430.64

Finding the Fourth Proportional to 21,404.95, 29,567.07 and 16,430.64

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Solution

The fourth proportional to 21,404.95, 29,567.07 and 16,430.64 is: 22,695.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,404.95 : 29,567.07 = 16,430.64 : x
  2. Step 2: Convert to fraction form
    21,404.95/29,567.07 = 16,430.64/x
  3. Step 3: Cross multiply
    21,404.95x = 29,567.07 × 16,430.64
  4. Step 4: Simplify right side
    21,404.95x = 485,805,653.04
  5. Step 5: Solve for x
    x = 485,805,653.04/21,404.95
  6. Step 6: Final answer
    x = 22,695.95

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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.