Home / 21,079.04-29,094.54-12,127.46

Finding the Fourth Proportional to 21,079.04, 29,094.54 and 12,127.46

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Solution

The fourth proportional to 21,079.04, 29,094.54 and 12,127.46 is: 16,739.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,079.04 : 29,094.54 = 12,127.46 : x
  2. Step 2: Convert to fraction form
    21,079.04/29,094.54 = 12,127.46/x
  3. Step 3: Cross multiply
    21,079.04x = 29,094.54 × 12,127.46
  4. Step 4: Simplify right side
    21,079.04x = 352,842,870.07
  5. Step 5: Solve for x
    x = 352,842,870.07/21,079.04
  6. Step 6: Final answer
    x = 16,739.04

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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.