Home / 35,515.10-53,272.65-13,329.20

Finding the Fourth Proportional to 35,515.10, 53,272.65 and 13,329.20

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Solution

The fourth proportional to 35,515.10, 53,272.65 and 13,329.20 is: 19,993.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,515.10 : 53,272.65 = 13,329.20 : x
  2. Step 2: Convert to fraction form
    35,515.10/53,272.65 = 13,329.20/x
  3. Step 3: Cross multiply
    35,515.10x = 53,272.65 × 13,329.20
  4. Step 4: Simplify right side
    35,515.10x = 710,081,806.38
  5. Step 5: Solve for x
    x = 710,081,806.38/35,515.10
  6. Step 6: Final answer
    x = 19,993.80

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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.