Home / 58,280.64-87,420.95-18,837.75

Finding the Fourth Proportional to 58,280.64, 87,420.95 and 18,837.75

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Solution

The fourth proportional to 58,280.64, 87,420.95 and 18,837.75 is: 28,256.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,280.64 : 87,420.95 = 18,837.75 : x
  2. Step 2: Convert to fraction form
    58,280.64/87,420.95 = 18,837.75/x
  3. Step 3: Cross multiply
    58,280.64x = 87,420.95 × 18,837.75
  4. Step 4: Simplify right side
    58,280.64x = 1,646,813,563.76
  5. Step 5: Solve for x
    x = 1,646,813,563.76/58,280.64
  6. Step 6: Final answer
    x = 28,256.62

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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.