Home / 21,064.32-29,070.29-12,114.63

Finding the Fourth Proportional to 21,064.32, 29,070.29 and 12,114.63

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Solution

The fourth proportional to 21,064.32, 29,070.29 and 12,114.63 is: 16,719.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,064.32 : 29,070.29 = 12,114.63 : x
  2. Step 2: Convert to fraction form
    21,064.32/29,070.29 = 12,114.63/x
  3. Step 3: Cross multiply
    21,064.32x = 29,070.29 × 12,114.63
  4. Step 4: Simplify right side
    21,064.32x = 352,175,837.63
  5. Step 5: Solve for x
    x = 352,175,837.63/21,064.32
  6. Step 6: Final answer
    x = 16,719.07

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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.