Home / 21,740.64-32,591.76-9,421.92

Finding the Fourth Proportional to 21,740.64, 32,591.76 and 9,421.92

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Solution

The fourth proportional to 21,740.64, 32,591.76 and 9,421.92 is: 14,124.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,740.64 : 32,591.76 = 9,421.92 : x
  2. Step 2: Convert to fraction form
    21,740.64/32,591.76 = 9,421.92/x
  3. Step 3: Cross multiply
    21,740.64x = 32,591.76 × 9,421.92
  4. Step 4: Simplify right side
    21,740.64x = 307,076,955.38
  5. Step 5: Solve for x
    x = 307,076,955.38/21,740.64
  6. Step 6: Final answer
    x = 14,124.56

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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.