Home / 28,966.86-39,967.80-17,642.28

Finding the Fourth Proportional to 28,966.86, 39,967.80 and 17,642.28

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Solution

The fourth proportional to 28,966.86, 39,967.80 and 17,642.28 is: 24,342.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,966.86 : 39,967.80 = 17,642.28 : x
  2. Step 2: Convert to fraction form
    28,966.86/39,967.80 = 17,642.28/x
  3. Step 3: Cross multiply
    28,966.86x = 39,967.80 × 17,642.28
  4. Step 4: Simplify right side
    28,966.86x = 705,123,118.58
  5. Step 5: Solve for x
    x = 705,123,118.58/28,966.86
  6. Step 6: Final answer
    x = 24,342.41

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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.