Home / 21,507.02-29,676.93-12,552.47

Finding the Fourth Proportional to 21,507.02, 29,676.93 and 12,552.47

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Solution

The fourth proportional to 21,507.02, 29,676.93 and 12,552.47 is: 17,320.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,507.02 : 29,676.93 = 12,552.47 : x
  2. Step 2: Convert to fraction form
    21,507.02/29,676.93 = 12,552.47/x
  3. Step 3: Cross multiply
    21,507.02x = 29,676.93 × 12,552.47
  4. Step 4: Simplify right side
    21,507.02x = 372,518,625.13
  5. Step 5: Solve for x
    x = 372,518,625.13/21,507.02
  6. Step 6: Final answer
    x = 17,320.80

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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.