Home / 47,205.93-70,784.51-13,921.76

Finding the Fourth Proportional to 47,205.93, 70,784.51 and 13,921.76

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Solution

The fourth proportional to 47,205.93, 70,784.51 and 13,921.76 is: 20,875.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,205.93 : 70,784.51 = 13,921.76 : x
  2. Step 2: Convert to fraction form
    47,205.93/70,784.51 = 13,921.76/x
  3. Step 3: Cross multiply
    47,205.93x = 70,784.51 × 13,921.76
  4. Step 4: Simplify right side
    47,205.93x = 985,444,959.94
  5. Step 5: Solve for x
    x = 985,444,959.94/47,205.93
  6. Step 6: Final answer
    x = 20,875.45

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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.