Home / 28,001.18-42,007.85-13,017.50

Finding the Fourth Proportional to 28,001.18, 42,007.85 and 13,017.50

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Solution

The fourth proportional to 28,001.18, 42,007.85 and 13,017.50 is: 19,529.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,001.18 : 42,007.85 = 13,017.50 : x
  2. Step 2: Convert to fraction form
    28,001.18/42,007.85 = 13,017.50/x
  3. Step 3: Cross multiply
    28,001.18x = 42,007.85 × 13,017.50
  4. Step 4: Simplify right side
    28,001.18x = 546,836,912.25
  5. Step 5: Solve for x
    x = 546,836,912.25/28,001.18
  6. Step 6: Final answer
    x = 19,529.07

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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.