Home / 21,015.02-29,004.98-12,068.66

Finding the Fourth Proportional to 21,015.02, 29,004.98 and 12,068.66

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Solution

The fourth proportional to 21,015.02, 29,004.98 and 12,068.66 is: 16,657.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,015.02 : 29,004.98 = 12,068.66 : x
  2. Step 2: Convert to fraction form
    21,015.02/29,004.98 = 12,068.66/x
  3. Step 3: Cross multiply
    21,015.02x = 29,004.98 × 12,068.66
  4. Step 4: Simplify right side
    21,015.02x = 350,051,036.56
  5. Step 5: Solve for x
    x = 350,051,036.56/21,015.02
  6. Step 6: Final answer
    x = 16,657.19

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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.