Home / 40,672.40-56,128.14-23,686.52

Finding the Fourth Proportional to 40,672.40, 56,128.14 and 23,686.52

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Solution

The fourth proportional to 40,672.40, 56,128.14 and 23,686.52 is: 32,687.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,672.40 : 56,128.14 = 23,686.52 : x
  2. Step 2: Convert to fraction form
    40,672.40/56,128.14 = 23,686.52/x
  3. Step 3: Cross multiply
    40,672.40x = 56,128.14 × 23,686.52
  4. Step 4: Simplify right side
    40,672.40x = 1,329,480,030.03
  5. Step 5: Solve for x
    x = 1,329,480,030.03/40,672.40
  6. Step 6: Final answer
    x = 32,687.53

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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.