Home / 21,417.21-32,137.06-8,776.35

Finding the Fourth Proportional to 21,417.21, 32,137.06 and 8,776.35

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Solution

The fourth proportional to 21,417.21, 32,137.06 and 8,776.35 is: 13,169.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,417.21 : 32,137.06 = 8,776.35 : x
  2. Step 2: Convert to fraction form
    21,417.21/32,137.06 = 8,776.35/x
  3. Step 3: Cross multiply
    21,417.21x = 32,137.06 × 8,776.35
  4. Step 4: Simplify right side
    21,417.21x = 282,046,088.31
  5. Step 5: Solve for x
    x = 282,046,088.31/21,417.21
  6. Step 6: Final answer
    x = 13,169.13

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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.