Home / 28,466.60-42,642.30-19,711.40

Finding the Fourth Proportional to 28,466.60, 42,642.30 and 19,711.40

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Solution

The fourth proportional to 28,466.60, 42,642.30 and 19,711.40 is: 29,527.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,466.60 : 42,642.30 = 19,711.40 : x
  2. Step 2: Convert to fraction form
    28,466.60/42,642.30 = 19,711.40/x
  3. Step 3: Cross multiply
    28,466.60x = 42,642.30 × 19,711.40
  4. Step 4: Simplify right side
    28,466.60x = 840,539,432.22
  5. Step 5: Solve for x
    x = 840,539,432.22/28,466.60
  6. Step 6: Final answer
    x = 29,527.22

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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.