Home / 42,802.20-64,210.14-13,213.08

Finding the Fourth Proportional to 42,802.20, 64,210.14 and 13,213.08

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Solution

The fourth proportional to 42,802.20, 64,210.14 and 13,213.08 is: 19,821.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,802.20 : 64,210.14 = 13,213.08 : x
  2. Step 2: Convert to fraction form
    42,802.20/64,210.14 = 13,213.08/x
  3. Step 3: Cross multiply
    42,802.20x = 64,210.14 × 13,213.08
  4. Step 4: Simplify right side
    42,802.20x = 848,413,716.63
  5. Step 5: Solve for x
    x = 848,413,716.63/42,802.20
  6. Step 6: Final answer
    x = 19,821.73

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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.