Home / 21,660.04-29,881.96-14,588.72

Finding the Fourth Proportional to 21,660.04, 29,881.96 and 14,588.72

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Solution

The fourth proportional to 21,660.04, 29,881.96 and 14,588.72 is: 20,126.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,660.04 : 29,881.96 = 14,588.72 : x
  2. Step 2: Convert to fraction form
    21,660.04/29,881.96 = 14,588.72/x
  3. Step 3: Cross multiply
    21,660.04x = 29,881.96 × 14,588.72
  4. Step 4: Simplify right side
    21,660.04x = 435,939,547.49
  5. Step 5: Solve for x
    x = 435,939,547.49/21,660.04
  6. Step 6: Final answer
    x = 20,126.44

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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.