Home / 40,877.98-61,283.90-12,783.58

Finding the Fourth Proportional to 40,877.98, 61,283.90 and 12,783.58

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Solution

The fourth proportional to 40,877.98, 61,283.90 and 12,783.58 is: 19,165.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,877.98 : 61,283.90 = 12,783.58 : x
  2. Step 2: Convert to fraction form
    40,877.98/61,283.90 = 12,783.58/x
  3. Step 3: Cross multiply
    40,877.98x = 61,283.90 × 12,783.58
  4. Step 4: Simplify right side
    40,877.98x = 783,427,638.36
  5. Step 5: Solve for x
    x = 783,427,638.36/40,877.98
  6. Step 6: Final answer
    x = 19,165.03

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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.