Home / 21,497.34-32,071.45-20,334.78

Finding the Fourth Proportional to 21,497.34, 32,071.45 and 20,334.78

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Solution

The fourth proportional to 21,497.34, 32,071.45 and 20,334.78 is: 30,337.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,497.34 : 32,071.45 = 20,334.78 : x
  2. Step 2: Convert to fraction form
    21,497.34/32,071.45 = 20,334.78/x
  3. Step 3: Cross multiply
    21,497.34x = 32,071.45 × 20,334.78
  4. Step 4: Simplify right side
    21,497.34x = 652,165,880.03
  5. Step 5: Solve for x
    x = 652,165,880.03/21,497.34
  6. Step 6: Final answer
    x = 30,337.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.