Home / 22,639.02-31,220.10-13,562.95

Finding the Fourth Proportional to 22,639.02, 31,220.10 and 13,562.95

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Solution

The fourth proportional to 22,639.02, 31,220.10 and 13,562.95 is: 18,703.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,639.02 : 31,220.10 = 13,562.95 : x
  2. Step 2: Convert to fraction form
    22,639.02/31,220.10 = 13,562.95/x
  3. Step 3: Cross multiply
    22,639.02x = 31,220.10 × 13,562.95
  4. Step 4: Simplify right side
    22,639.02x = 423,436,655.30
  5. Step 5: Solve for x
    x = 423,436,655.30/22,639.02
  6. Step 6: Final answer
    x = 18,703.84

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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.