Home / 21,001.04-31,479.96-14,405.84

Finding the Fourth Proportional to 21,001.04, 31,479.96 and 14,405.84

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Solution

The fourth proportional to 21,001.04, 31,479.96 and 14,405.84 is: 21,593.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,001.04 : 31,479.96 = 14,405.84 : x
  2. Step 2: Convert to fraction form
    21,001.04/31,479.96 = 14,405.84/x
  3. Step 3: Cross multiply
    21,001.04x = 31,479.96 × 14,405.84
  4. Step 4: Simplify right side
    21,001.04x = 453,495,266.97
  5. Step 5: Solve for x
    x = 453,495,266.97/21,001.04
  6. Step 6: Final answer
    x = 21,593.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.