Home / 22,403.76-30,916.95-12,331.98

Finding the Fourth Proportional to 22,403.76, 30,916.95 and 12,331.98

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Solution

The fourth proportional to 22,403.76, 30,916.95 and 12,331.98 is: 17,018.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,403.76 : 30,916.95 = 12,331.98 : x
  2. Step 2: Convert to fraction form
    22,403.76/30,916.95 = 12,331.98/x
  3. Step 3: Cross multiply
    22,403.76x = 30,916.95 × 12,331.98
  4. Step 4: Simplify right side
    22,403.76x = 381,267,147.40
  5. Step 5: Solve for x
    x = 381,267,147.40/22,403.76
  6. Step 6: Final answer
    x = 17,018.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.