Home / 42,854.75-64,299.04-13,274.89

Finding the Fourth Proportional to 42,854.75, 64,299.04 and 13,274.89

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Solution

The fourth proportional to 42,854.75, 64,299.04 and 13,274.89 is: 19,917.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,854.75 : 64,299.04 = 13,274.89 : x
  2. Step 2: Convert to fraction form
    42,854.75/64,299.04 = 13,274.89/x
  3. Step 3: Cross multiply
    42,854.75x = 64,299.04 × 13,274.89
  4. Step 4: Simplify right side
    42,854.75x = 853,562,526.51
  5. Step 5: Solve for x
    x = 853,562,526.51/42,854.75
  6. Step 6: Final answer
    x = 19,917.57

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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.