Home / 40,688.40-56,143.50-22,784.16

Finding the Fourth Proportional to 40,688.40, 56,143.50 and 22,784.16

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Solution

The fourth proportional to 40,688.40, 56,143.50 and 22,784.16 is: 31,438.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,688.40 : 56,143.50 = 22,784.16 : x
  2. Step 2: Convert to fraction form
    40,688.40/56,143.50 = 22,784.16/x
  3. Step 3: Cross multiply
    40,688.40x = 56,143.50 × 22,784.16
  4. Step 4: Simplify right side
    40,688.40x = 1,279,182,486.96
  5. Step 5: Solve for x
    x = 1,279,182,486.96/40,688.40
  6. Step 6: Final answer
    x = 31,438.51

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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.