Home / 28,122.02-42,095.18-18,769.70

Finding the Fourth Proportional to 28,122.02, 42,095.18 and 18,769.70

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Solution

The fourth proportional to 28,122.02, 42,095.18 and 18,769.70 is: 28,095.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,122.02 : 42,095.18 = 18,769.70 : x
  2. Step 2: Convert to fraction form
    28,122.02/42,095.18 = 18,769.70/x
  3. Step 3: Cross multiply
    28,122.02x = 42,095.18 × 18,769.70
  4. Step 4: Simplify right side
    28,122.02x = 790,113,900.05
  5. Step 5: Solve for x
    x = 790,113,900.05/28,122.02
  6. Step 6: Final answer
    x = 28,095.92

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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.