Home / 28,486.34-42,726.15-17,925.20

Finding the Fourth Proportional to 28,486.34, 42,726.15 and 17,925.20

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Solution

The fourth proportional to 28,486.34, 42,726.15 and 17,925.20 is: 26,885.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,486.34 : 42,726.15 = 17,925.20 : x
  2. Step 2: Convert to fraction form
    28,486.34/42,726.15 = 17,925.20/x
  3. Step 3: Cross multiply
    28,486.34x = 42,726.15 × 17,925.20
  4. Step 4: Simplify right side
    28,486.34x = 765,874,783.98
  5. Step 5: Solve for x
    x = 765,874,783.98/28,486.34
  6. Step 6: Final answer
    x = 26,885.69

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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.