Home / 42,862.40-64,297.92-14,778.72

Finding the Fourth Proportional to 42,862.40, 64,297.92 and 14,778.72

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Solution

The fourth proportional to 42,862.40, 64,297.92 and 14,778.72 is: 22,169.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,862.40 : 64,297.92 = 14,778.72 : x
  2. Step 2: Convert to fraction form
    42,862.40/64,297.92 = 14,778.72/x
  3. Step 3: Cross multiply
    42,862.40x = 64,297.92 × 14,778.72
  4. Step 4: Simplify right side
    42,862.40x = 950,240,956.26
  5. Step 5: Solve for x
    x = 950,240,956.26/42,862.40
  6. Step 6: Final answer
    x = 22,169.57

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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.