Home / 31,125.48-46,489.74-28,159.35

Finding the Fourth Proportional to 31,125.48, 46,489.74 and 28,159.35

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Solution

The fourth proportional to 31,125.48, 46,489.74 and 28,159.35 is: 42,059.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,125.48 : 46,489.74 = 28,159.35 : x
  2. Step 2: Convert to fraction form
    31,125.48/46,489.74 = 28,159.35/x
  3. Step 3: Cross multiply
    31,125.48x = 46,489.74 × 28,159.35
  4. Step 4: Simplify right side
    31,125.48x = 1,309,120,860.07
  5. Step 5: Solve for x
    x = 1,309,120,860.07/31,125.48
  6. Step 6: Final answer
    x = 42,059.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.