Home / 42,713.47-64,083.91-20,528.45

Finding the Fourth Proportional to 42,713.47, 64,083.91 and 20,528.45

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Solution

The fourth proportional to 42,713.47, 64,083.91 and 20,528.45 is: 30,799.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,713.47 : 64,083.91 = 20,528.45 : x
  2. Step 2: Convert to fraction form
    42,713.47/64,083.91 = 20,528.45/x
  3. Step 3: Cross multiply
    42,713.47x = 64,083.91 × 20,528.45
  4. Step 4: Simplify right side
    42,713.47x = 1,315,543,342.24
  5. Step 5: Solve for x
    x = 1,315,543,342.24/42,713.47
  6. Step 6: Final answer
    x = 30,799.26

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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.