Home / 30,871.48-46,287.76-20,330.16

Finding the Fourth Proportional to 30,871.48, 46,287.76 and 20,330.16

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Solution

The fourth proportional to 30,871.48, 46,287.76 and 20,330.16 is: 30,482.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,871.48 : 46,287.76 = 20,330.16 : x
  2. Step 2: Convert to fraction form
    30,871.48/46,287.76 = 20,330.16/x
  3. Step 3: Cross multiply
    30,871.48x = 46,287.76 × 20,330.16
  4. Step 4: Simplify right side
    30,871.48x = 941,037,566.84
  5. Step 5: Solve for x
    x = 941,037,566.84/30,871.48
  6. Step 6: Final answer
    x = 30,482.42

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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.