Home / 13,569.96-20,459.55-13,485.72

Finding the Fourth Proportional to 13,569.96, 20,459.55 and 13,485.72

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Solution

The fourth proportional to 13,569.96, 20,459.55 and 13,485.72 is: 20,332.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,569.96 : 20,459.55 = 13,485.72 : x
  2. Step 2: Convert to fraction form
    13,569.96/20,459.55 = 13,485.72/x
  3. Step 3: Cross multiply
    13,569.96x = 20,459.55 × 13,485.72
  4. Step 4: Simplify right side
    13,569.96x = 275,911,762.63
  5. Step 5: Solve for x
    x = 275,911,762.63/13,569.96
  6. Step 6: Final answer
    x = 20,332.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.