Home / 22,777.02-31,432.32-12,705.20

Finding the Fourth Proportional to 22,777.02, 31,432.32 and 12,705.20

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Solution

The fourth proportional to 22,777.02, 31,432.32 and 12,705.20 is: 17,533.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,777.02 : 31,432.32 = 12,705.20 : x
  2. Step 2: Convert to fraction form
    22,777.02/31,432.32 = 12,705.20/x
  3. Step 3: Cross multiply
    22,777.02x = 31,432.32 × 12,705.20
  4. Step 4: Simplify right side
    22,777.02x = 399,353,754.90
  5. Step 5: Solve for x
    x = 399,353,754.90/22,777.02
  6. Step 6: Final answer
    x = 17,533.19

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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.