Home / 21,988.02-30,342.03-14,029.39

Finding the Fourth Proportional to 21,988.02, 30,342.03 and 14,029.39

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Solution

The fourth proportional to 21,988.02, 30,342.03 and 14,029.39 is: 19,359.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,988.02 : 30,342.03 = 14,029.39 : x
  2. Step 2: Convert to fraction form
    21,988.02/30,342.03 = 14,029.39/x
  3. Step 3: Cross multiply
    21,988.02x = 30,342.03 × 14,029.39
  4. Step 4: Simplify right side
    21,988.02x = 425,680,172.26
  5. Step 5: Solve for x
    x = 425,680,172.26/21,988.02
  6. Step 6: Final answer
    x = 19,359.64

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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.