Home / 42,215.77-63,332.16-20,031.49

Finding the Fourth Proportional to 42,215.77, 63,332.16 and 20,031.49

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Solution

The fourth proportional to 42,215.77, 63,332.16 and 20,031.49 is: 30,051.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,215.77 : 63,332.16 = 20,031.49 : x
  2. Step 2: Convert to fraction form
    42,215.77/63,332.16 = 20,031.49/x
  3. Step 3: Cross multiply
    42,215.77x = 63,332.16 × 20,031.49
  4. Step 4: Simplify right side
    42,215.77x = 1,268,637,529.72
  5. Step 5: Solve for x
    x = 1,268,637,529.72/42,215.77
  6. Step 6: Final answer
    x = 30,051.27

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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.