Home / 40,711.10-61,075.37-12,630.55

Finding the Fourth Proportional to 40,711.10, 61,075.37 and 12,630.55

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Solution

The fourth proportional to 40,711.10, 61,075.37 and 12,630.55 is: 18,948.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,711.10 : 61,075.37 = 12,630.55 : x
  2. Step 2: Convert to fraction form
    40,711.10/61,075.37 = 12,630.55/x
  3. Step 3: Cross multiply
    40,711.10x = 61,075.37 × 12,630.55
  4. Step 4: Simplify right side
    40,711.10x = 771,415,514.55
  5. Step 5: Solve for x
    x = 771,415,514.55/40,711.10
  6. Step 6: Final answer
    x = 18,948.53

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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.