Home / 28,335.42-42,447.65-21,729.26

Finding the Fourth Proportional to 28,335.42, 42,447.65 and 21,729.26

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Solution

The fourth proportional to 28,335.42, 42,447.65 and 21,729.26 is: 32,551.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,335.42 : 42,447.65 = 21,729.26 : x
  2. Step 2: Convert to fraction form
    28,335.42/42,447.65 = 21,729.26/x
  3. Step 3: Cross multiply
    28,335.42x = 42,447.65 × 21,729.26
  4. Step 4: Simplify right side
    28,335.42x = 922,356,020.71
  5. Step 5: Solve for x
    x = 922,356,020.71/28,335.42
  6. Step 6: Final answer
    x = 32,551.34

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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.