Home / 42,127.88-63,240.41-21,395.12

Finding the Fourth Proportional to 42,127.88, 63,240.41 and 21,395.12

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Solution

The fourth proportional to 42,127.88, 63,240.41 and 21,395.12 is: 32,117.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,127.88 : 63,240.41 = 21,395.12 : x
  2. Step 2: Convert to fraction form
    42,127.88/63,240.41 = 21,395.12/x
  3. Step 3: Cross multiply
    42,127.88x = 63,240.41 × 21,395.12
  4. Step 4: Simplify right side
    42,127.88x = 1,353,035,898.08
  5. Step 5: Solve for x
    x = 1,353,035,898.08/42,127.88
  6. Step 6: Final answer
    x = 32,117.35

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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.