Home / 33,210.90-45,805.10-21,275.34

Finding the Fourth Proportional to 33,210.90, 45,805.10 and 21,275.34

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Solution

The fourth proportional to 33,210.90, 45,805.10 and 21,275.34 is: 29,343.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,210.90 : 45,805.10 = 21,275.34 : x
  2. Step 2: Convert to fraction form
    33,210.90/45,805.10 = 21,275.34/x
  3. Step 3: Cross multiply
    33,210.90x = 45,805.10 × 21,275.34
  4. Step 4: Simplify right side
    33,210.90x = 974,518,969.86
  5. Step 5: Solve for x
    x = 974,518,969.86/33,210.90
  6. Step 6: Final answer
    x = 29,343.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.