Home / 28,501.70-42,752.55-18,004.10

Finding the Fourth Proportional to 28,501.70, 42,752.55 and 18,004.10

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Solution

The fourth proportional to 28,501.70, 42,752.55 and 18,004.10 is: 27,006.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,501.70 : 42,752.55 = 18,004.10 : x
  2. Step 2: Convert to fraction form
    28,501.70/42,752.55 = 18,004.10/x
  3. Step 3: Cross multiply
    28,501.70x = 42,752.55 × 18,004.10
  4. Step 4: Simplify right side
    28,501.70x = 769,721,185.46
  5. Step 5: Solve for x
    x = 769,721,185.46/28,501.70
  6. Step 6: Final answer
    x = 27,006.15

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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.