Home / 42,815.80-64,207.32-14,730.76

Finding the Fourth Proportional to 42,815.80, 64,207.32 and 14,730.76

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Solution

The fourth proportional to 42,815.80, 64,207.32 and 14,730.76 is: 22,090.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,815.80 : 64,207.32 = 14,730.76 : x
  2. Step 2: Convert to fraction form
    42,815.80/64,207.32 = 14,730.76/x
  3. Step 3: Cross multiply
    42,815.80x = 64,207.32 × 14,730.76
  4. Step 4: Simplify right side
    42,815.80x = 945,822,621.16
  5. Step 5: Solve for x
    x = 945,822,621.16/42,815.80
  6. Step 6: Final answer
    x = 22,090.50

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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.