Home / 28,145.17-42,222.87-13,353.95

Finding the Fourth Proportional to 28,145.17, 42,222.87 and 13,353.95

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Solution

The fourth proportional to 28,145.17, 42,222.87 and 13,353.95 is: 20,033.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,145.17 : 42,222.87 = 13,353.95 : x
  2. Step 2: Convert to fraction form
    28,145.17/42,222.87 = 13,353.95/x
  3. Step 3: Cross multiply
    28,145.17x = 42,222.87 × 13,353.95
  4. Step 4: Simplify right side
    28,145.17x = 563,842,094.84
  5. Step 5: Solve for x
    x = 563,842,094.84/28,145.17
  6. Step 6: Final answer
    x = 20,033.35

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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.