Home / 42,840.90-64,285.65-16,547.49

Finding the Fourth Proportional to 42,840.90, 64,285.65 and 16,547.49

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Solution

The fourth proportional to 42,840.90, 64,285.65 and 16,547.49 is: 24,830.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,840.90 : 64,285.65 = 16,547.49 : x
  2. Step 2: Convert to fraction form
    42,840.90/64,285.65 = 16,547.49/x
  3. Step 3: Cross multiply
    42,840.90x = 64,285.65 × 16,547.49
  4. Step 4: Simplify right side
    42,840.90x = 1,063,766,150.52
  5. Step 5: Solve for x
    x = 1,063,766,150.52/42,840.90
  6. Step 6: Final answer
    x = 24,830.62

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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.