Home / 42,945.24-64,416.78-14,885.40

Finding the Fourth Proportional to 42,945.24, 64,416.78 and 14,885.40

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Solution

The fourth proportional to 42,945.24, 64,416.78 and 14,885.40 is: 22,327.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,945.24 : 64,416.78 = 14,885.40 : x
  2. Step 2: Convert to fraction form
    42,945.24/64,416.78 = 14,885.40/x
  3. Step 3: Cross multiply
    42,945.24x = 64,416.78 × 14,885.40
  4. Step 4: Simplify right side
    42,945.24x = 958,869,537.01
  5. Step 5: Solve for x
    x = 958,869,537.01/42,945.24
  6. Step 6: Final answer
    x = 22,327.73

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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.