Home / 28,266.90-42,400.35-25,205.10

Finding the Fourth Proportional to 28,266.90, 42,400.35 and 25,205.10

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Solution

The fourth proportional to 28,266.90, 42,400.35 and 25,205.10 is: 37,807.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,266.90 : 42,400.35 = 25,205.10 : x
  2. Step 2: Convert to fraction form
    28,266.90/42,400.35 = 25,205.10/x
  3. Step 3: Cross multiply
    28,266.90x = 42,400.35 × 25,205.10
  4. Step 4: Simplify right side
    28,266.90x = 1,068,705,061.79
  5. Step 5: Solve for x
    x = 1,068,705,061.79/28,266.90
  6. Step 6: Final answer
    x = 37,807.65

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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.