Home / 42,974.60-64,461.70-13,392.45

Finding the Fourth Proportional to 42,974.60, 64,461.70 and 13,392.45

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Solution

The fourth proportional to 42,974.60, 64,461.70 and 13,392.45 is: 20,088.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,974.60 : 64,461.70 = 13,392.45 : x
  2. Step 2: Convert to fraction form
    42,974.60/64,461.70 = 13,392.45/x
  3. Step 3: Cross multiply
    42,974.60x = 64,461.70 × 13,392.45
  4. Step 4: Simplify right side
    42,974.60x = 863,300,027.20
  5. Step 5: Solve for x
    x = 863,300,027.20/42,974.60
  6. Step 6: Final answer
    x = 20,088.61

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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.