Home / 40,889.12-56,411-22,980.04

Finding the Fourth Proportional to 40,889.12, 56,411 and 22,980.04

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Solution

The fourth proportional to 40,889.12, 56,411 and 22,980.04 is: 31,703.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,889.12 : 56,411 = 22,980.04 : x
  2. Step 2: Convert to fraction form
    40,889.12/56,411 = 22,980.04/x
  3. Step 3: Cross multiply
    40,889.12x = 56,411 × 22,980.04
  4. Step 4: Simplify right side
    40,889.12x = 1,296,327,036.44
  5. Step 5: Solve for x
    x = 1,296,327,036.44/40,889.12
  6. Step 6: Final answer
    x = 31,703.47

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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.