Home / 40,646.40-56,061.90-28,697.28

Finding the Fourth Proportional to 40,646.40, 56,061.90 and 28,697.28

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Solution

The fourth proportional to 40,646.40, 56,061.90 and 28,697.28 is: 39,580.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,646.40 : 56,061.90 = 28,697.28 : x
  2. Step 2: Convert to fraction form
    40,646.40/56,061.90 = 28,697.28/x
  3. Step 3: Cross multiply
    40,646.40x = 56,061.90 × 28,697.28
  4. Step 4: Simplify right side
    40,646.40x = 1,608,824,041.63
  5. Step 5: Solve for x
    x = 1,608,824,041.63/40,646.40
  6. Step 6: Final answer
    x = 39,580.97

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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.