Home / 47,089.05-70,628.28-13,809.39

Finding the Fourth Proportional to 47,089.05, 70,628.28 and 13,809.39

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Solution

The fourth proportional to 47,089.05, 70,628.28 and 13,809.39 is: 20,712.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,089.05 : 70,628.28 = 13,809.39 : x
  2. Step 2: Convert to fraction form
    47,089.05/70,628.28 = 13,809.39/x
  3. Step 3: Cross multiply
    47,089.05x = 70,628.28 × 13,809.39
  4. Step 4: Simplify right side
    47,089.05x = 975,333,463.55
  5. Step 5: Solve for x
    x = 975,333,463.55/47,089.05
  6. Step 6: Final answer
    x = 20,712.53

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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.