Home / 21,089.61-29,102.85-12,593.16

Finding the Fourth Proportional to 21,089.61, 29,102.85 and 12,593.16

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Solution

The fourth proportional to 21,089.61, 29,102.85 and 12,593.16 is: 17,378.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,089.61 : 29,102.85 = 12,593.16 : x
  2. Step 2: Convert to fraction form
    21,089.61/29,102.85 = 12,593.16/x
  3. Step 3: Cross multiply
    21,089.61x = 29,102.85 × 12,593.16
  4. Step 4: Simplify right side
    21,089.61x = 366,496,846.51
  5. Step 5: Solve for x
    x = 366,496,846.51/21,089.61
  6. Step 6: Final answer
    x = 17,378.08

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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.