Home / 21,363.36-32,042.40-8,875.68

Finding the Fourth Proportional to 21,363.36, 32,042.40 and 8,875.68

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Solution

The fourth proportional to 21,363.36, 32,042.40 and 8,875.68 is: 13,312.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,363.36 : 32,042.40 = 8,875.68 : x
  2. Step 2: Convert to fraction form
    21,363.36/32,042.40 = 8,875.68/x
  3. Step 3: Cross multiply
    21,363.36x = 32,042.40 × 8,875.68
  4. Step 4: Simplify right side
    21,363.36x = 284,398,088.83
  5. Step 5: Solve for x
    x = 284,398,088.83/21,363.36
  6. Step 6: Final answer
    x = 13,312.42

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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.