Home / 28,304.74-42,442.47-12,709.06

Finding the Fourth Proportional to 28,304.74, 42,442.47 and 12,709.06

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Solution

The fourth proportional to 28,304.74, 42,442.47 and 12,709.06 is: 19,057.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,304.74 : 42,442.47 = 12,709.06 : x
  2. Step 2: Convert to fraction form
    28,304.74/42,442.47 = 12,709.06/x
  3. Step 3: Cross multiply
    28,304.74x = 42,442.47 × 12,709.06
  4. Step 4: Simplify right side
    28,304.74x = 539,403,897.78
  5. Step 5: Solve for x
    x = 539,403,897.78/28,304.74
  6. Step 6: Final answer
    x = 19,057.02

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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.