Home / 35,981.70-53,972.55-12,605.10

Finding the Fourth Proportional to 35,981.70, 53,972.55 and 12,605.10

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Solution

The fourth proportional to 35,981.70, 53,972.55 and 12,605.10 is: 18,907.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,981.70 : 53,972.55 = 12,605.10 : x
  2. Step 2: Convert to fraction form
    35,981.70/53,972.55 = 12,605.10/x
  3. Step 3: Cross multiply
    35,981.70x = 53,972.55 × 12,605.10
  4. Step 4: Simplify right side
    35,981.70x = 680,329,390.01
  5. Step 5: Solve for x
    x = 680,329,390.01/35,981.70
  6. Step 6: Final answer
    x = 18,907.65

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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.