Home / 42,070.32-63,095.76-18,684

Finding the Fourth Proportional to 42,070.32, 63,095.76 and 18,684

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Solution

The fourth proportional to 42,070.32, 63,095.76 and 18,684 is: 28,021.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,070.32 : 63,095.76 = 18,684 : x
  2. Step 2: Convert to fraction form
    42,070.32/63,095.76 = 18,684/x
  3. Step 3: Cross multiply
    42,070.32x = 63,095.76 × 18,684
  4. Step 4: Simplify right side
    42,070.32x = 1,178,881,179.84
  5. Step 5: Solve for x
    x = 1,178,881,179.84/42,070.32
  6. Step 6: Final answer
    x = 28,021.68

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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.