Home / 21,426.72-32,140.08-11,031.36

Finding the Fourth Proportional to 21,426.72, 32,140.08 and 11,031.36

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Solution

The fourth proportional to 21,426.72, 32,140.08 and 11,031.36 is: 16,547.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,426.72 : 32,140.08 = 11,031.36 : x
  2. Step 2: Convert to fraction form
    21,426.72/32,140.08 = 11,031.36/x
  3. Step 3: Cross multiply
    21,426.72x = 32,140.08 × 11,031.36
  4. Step 4: Simplify right side
    21,426.72x = 354,548,792.91
  5. Step 5: Solve for x
    x = 354,548,792.91/21,426.72
  6. Step 6: Final answer
    x = 16,547.04

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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.