Home / 28,031.01-42,039.35-8,304.95

Finding the Fourth Proportional to 28,031.01, 42,039.35 and 8,304.95

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Solution

The fourth proportional to 28,031.01, 42,039.35 and 8,304.95 is: 12,455.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,031.01 : 42,039.35 = 8,304.95 : x
  2. Step 2: Convert to fraction form
    28,031.01/42,039.35 = 8,304.95/x
  3. Step 3: Cross multiply
    28,031.01x = 42,039.35 × 8,304.95
  4. Step 4: Simplify right side
    28,031.01x = 349,134,804.88
  5. Step 5: Solve for x
    x = 349,134,804.88/28,031.01
  6. Step 6: Final answer
    x = 12,455.31

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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.