Home / 30,881.12-46,347.60-13,364.32

Finding the Fourth Proportional to 30,881.12, 46,347.60 and 13,364.32

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Solution

The fourth proportional to 30,881.12, 46,347.60 and 13,364.32 is: 20,057.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,881.12 : 46,347.60 = 13,364.32 : x
  2. Step 2: Convert to fraction form
    30,881.12/46,347.60 = 13,364.32/x
  3. Step 3: Cross multiply
    30,881.12x = 46,347.60 × 13,364.32
  4. Step 4: Simplify right side
    30,881.12x = 619,404,157.63
  5. Step 5: Solve for x
    x = 619,404,157.63/30,881.12
  6. Step 6: Final answer
    x = 20,057.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.