Home / 22,445.62-30,977.77-12,888.50

Finding the Fourth Proportional to 22,445.62, 30,977.77 and 12,888.50

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Solution

The fourth proportional to 22,445.62, 30,977.77 and 12,888.50 is: 17,787.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,445.62 : 30,977.77 = 12,888.50 : x
  2. Step 2: Convert to fraction form
    22,445.62/30,977.77 = 12,888.50/x
  3. Step 3: Cross multiply
    22,445.62x = 30,977.77 × 12,888.50
  4. Step 4: Simplify right side
    22,445.62x = 399,256,980.66
  5. Step 5: Solve for x
    x = 399,256,980.66/22,445.62
  6. Step 6: Final answer
    x = 17,787.74

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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.