Home / 30,938.40-46,412.64-11,219.04

Finding the Fourth Proportional to 30,938.40, 46,412.64 and 11,219.04

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Solution

The fourth proportional to 30,938.40, 46,412.64 and 11,219.04 is: 16,830.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,938.40 : 46,412.64 = 11,219.04 : x
  2. Step 2: Convert to fraction form
    30,938.40/46,412.64 = 11,219.04/x
  3. Step 3: Cross multiply
    30,938.40x = 46,412.64 × 11,219.04
  4. Step 4: Simplify right side
    30,938.40x = 520,705,264.67
  5. Step 5: Solve for x
    x = 520,705,264.67/30,938.40
  6. Step 6: Final answer
    x = 16,830.39

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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.