Home / 28,048.14-42,079.53-10,518.30

Finding the Fourth Proportional to 28,048.14, 42,079.53 and 10,518.30

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Solution

The fourth proportional to 28,048.14, 42,079.53 and 10,518.30 is: 15,780.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,048.14 : 42,079.53 = 10,518.30 : x
  2. Step 2: Convert to fraction form
    28,048.14/42,079.53 = 10,518.30/x
  3. Step 3: Cross multiply
    28,048.14x = 42,079.53 × 10,518.30
  4. Step 4: Simplify right side
    28,048.14x = 442,605,120.40
  5. Step 5: Solve for x
    x = 442,605,120.40/28,048.14
  6. Step 6: Final answer
    x = 15,780.20

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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.