Home / 28,612.12-42,925.80-11,966.56

Finding the Fourth Proportional to 28,612.12, 42,925.80 and 11,966.56

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Solution

The fourth proportional to 28,612.12, 42,925.80 and 11,966.56 is: 17,953.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,612.12 : 42,925.80 = 11,966.56 : x
  2. Step 2: Convert to fraction form
    28,612.12/42,925.80 = 11,966.56/x
  3. Step 3: Cross multiply
    28,612.12x = 42,925.80 × 11,966.56
  4. Step 4: Simplify right side
    28,612.12x = 513,674,161.25
  5. Step 5: Solve for x
    x = 513,674,161.25/28,612.12
  6. Step 6: Final answer
    x = 17,953.03

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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.