Home / 49,334.40-74,011.20-21,254.40

Finding the Fourth Proportional to 49,334.40, 74,011.20 and 21,254.40

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Solution

The fourth proportional to 49,334.40, 74,011.20 and 21,254.40 is: 31,885.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,334.40 : 74,011.20 = 21,254.40 : x
  2. Step 2: Convert to fraction form
    49,334.40/74,011.20 = 21,254.40/x
  3. Step 3: Cross multiply
    49,334.40x = 74,011.20 × 21,254.40
  4. Step 4: Simplify right side
    49,334.40x = 1,573,063,649.28
  5. Step 5: Solve for x
    x = 1,573,063,649.28/49,334.40
  6. Step 6: Final answer
    x = 31,885.74

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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.