Home / 28,040.04-42,037.02-19,130.76

Finding the Fourth Proportional to 28,040.04, 42,037.02 and 19,130.76

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Solution

The fourth proportional to 28,040.04, 42,037.02 and 19,130.76 is: 28,680.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040.04 : 42,037.02 = 19,130.76 : x
  2. Step 2: Convert to fraction form
    28,040.04/42,037.02 = 19,130.76/x
  3. Step 3: Cross multiply
    28,040.04x = 42,037.02 × 19,130.76
  4. Step 4: Simplify right side
    28,040.04x = 804,200,140.74
  5. Step 5: Solve for x
    x = 804,200,140.74/28,040.04
  6. Step 6: Final answer
    x = 28,680.42

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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.