Home / 40,947.62-61,307.37-20,913.74

Finding the Fourth Proportional to 40,947.62, 61,307.37 and 20,913.74

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Solution

The fourth proportional to 40,947.62, 61,307.37 and 20,913.74 is: 31,312.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,947.62 : 61,307.37 = 20,913.74 : x
  2. Step 2: Convert to fraction form
    40,947.62/61,307.37 = 20,913.74/x
  3. Step 3: Cross multiply
    40,947.62x = 61,307.37 × 20,913.74
  4. Step 4: Simplify right side
    40,947.62x = 1,282,166,089.73
  5. Step 5: Solve for x
    x = 1,282,166,089.73/40,947.62
  6. Step 6: Final answer
    x = 31,312.35

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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.