Home / 30,506.42-45,700.04-21,017.07

Finding the Fourth Proportional to 30,506.42, 45,700.04 and 21,017.07

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Solution

The fourth proportional to 30,506.42, 45,700.04 and 21,017.07 is: 31,484.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,506.42 : 45,700.04 = 21,017.07 : x
  2. Step 2: Convert to fraction form
    30,506.42/45,700.04 = 21,017.07/x
  3. Step 3: Cross multiply
    30,506.42x = 45,700.04 × 21,017.07
  4. Step 4: Simplify right side
    30,506.42x = 960,480,939.68
  5. Step 5: Solve for x
    x = 960,480,939.68/30,506.42
  6. Step 6: Final answer
    x = 31,484.55

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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.