Home / 30,637.80-45,938.20-13,767.72

Finding the Fourth Proportional to 30,637.80, 45,938.20 and 13,767.72

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Solution

The fourth proportional to 30,637.80, 45,938.20 and 13,767.72 is: 20,643.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,637.80 : 45,938.20 = 13,767.72 : x
  2. Step 2: Convert to fraction form
    30,637.80/45,938.20 = 13,767.72/x
  3. Step 3: Cross multiply
    30,637.80x = 45,938.20 × 13,767.72
  4. Step 4: Simplify right side
    30,637.80x = 632,464,274.90
  5. Step 5: Solve for x
    x = 632,464,274.90/30,637.80
  6. Step 6: Final answer
    x = 20,643.27

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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.