Home / 20,857,531.40-31,267,634.70-13,672,507.40

Finding the Fourth Proportional to 20,857,531.40, 31,267,634.70 and 13,672,507.40

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Solution

The fourth proportional to 20,857,531.40, 31,267,634.70 and 13,672,507.40 is: 20,496,527.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,857,531.40 : 31,267,634.70 = 13,672,507.40 : x
  2. Step 2: Convert to fraction form
    20,857,531.40/31,267,634.70 = 13,672,507.40/x
  3. Step 3: Cross multiply
    20,857,531.40x = 31,267,634.70 × 13,672,507.40
  4. Step 4: Simplify right side
    20,857,531.40x = 427,506,966,816,246.81
  5. Step 5: Solve for x
    x = 427,506,966,816,246.81/20,857,531.40
  6. Step 6: Final answer
    x = 20,496,527.54

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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.