Home / 42,207.40-63,194.46-21,328.84

Finding the Fourth Proportional to 42,207.40, 63,194.46 and 21,328.84

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Solution

The fourth proportional to 42,207.40, 63,194.46 and 21,328.84 is: 31,934.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,207.40 : 63,194.46 = 21,328.84 : x
  2. Step 2: Convert to fraction form
    42,207.40/63,194.46 = 21,328.84/x
  3. Step 3: Cross multiply
    42,207.40x = 63,194.46 × 21,328.84
  4. Step 4: Simplify right side
    42,207.40x = 1,347,864,526.23
  5. Step 5: Solve for x
    x = 1,347,864,526.23/42,207.40
  6. Step 6: Final answer
    x = 31,934.32

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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.