Home / 35,656.81-53,445.12-13,455.12

Finding the Fourth Proportional to 35,656.81, 53,445.12 and 13,455.12

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Solution

The fourth proportional to 35,656.81, 53,445.12 and 13,455.12 is: 20,167.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,656.81 : 53,445.12 = 13,455.12 : x
  2. Step 2: Convert to fraction form
    35,656.81/53,445.12 = 13,455.12/x
  3. Step 3: Cross multiply
    35,656.81x = 53,445.12 × 13,455.12
  4. Step 4: Simplify right side
    35,656.81x = 719,110,503.01
  5. Step 5: Solve for x
    x = 719,110,503.01/35,656.81
  6. Step 6: Final answer
    x = 20,167.55

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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.