Home / 21,829.95-30,101.47-14,744.07

Finding the Fourth Proportional to 21,829.95, 30,101.47 and 14,744.07

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Solution

The fourth proportional to 21,829.95, 30,101.47 and 14,744.07 is: 20,330.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,829.95 : 30,101.47 = 14,744.07 : x
  2. Step 2: Convert to fraction form
    21,829.95/30,101.47 = 14,744.07/x
  3. Step 3: Cross multiply
    21,829.95x = 30,101.47 × 14,744.07
  4. Step 4: Simplify right side
    21,829.95x = 443,818,180.78
  5. Step 5: Solve for x
    x = 443,818,180.78/21,829.95
  6. Step 6: Final answer
    x = 20,330.70

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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.