Home / 21,389.92-32,041.20-12,598.24

Finding the Fourth Proportional to 21,389.92, 32,041.20 and 12,598.24

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Solution

The fourth proportional to 21,389.92, 32,041.20 and 12,598.24 is: 18,871.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,389.92 : 32,041.20 = 12,598.24 : x
  2. Step 2: Convert to fraction form
    21,389.92/32,041.20 = 12,598.24/x
  3. Step 3: Cross multiply
    21,389.92x = 32,041.20 × 12,598.24
  4. Step 4: Simplify right side
    21,389.92x = 403,662,727.49
  5. Step 5: Solve for x
    x = 403,662,727.49/21,389.92
  6. Step 6: Final answer
    x = 18,871.63

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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.