Home / 42,373.17-63,567.87-21,317.76

Finding the Fourth Proportional to 42,373.17, 63,567.87 and 21,317.76

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Solution

The fourth proportional to 42,373.17, 63,567.87 and 21,317.76 is: 31,980.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,373.17 : 63,567.87 = 21,317.76 : x
  2. Step 2: Convert to fraction form
    42,373.17/63,567.87 = 21,317.76/x
  3. Step 3: Cross multiply
    42,373.17x = 63,567.87 × 21,317.76
  4. Step 4: Simplify right side
    42,373.17x = 1,355,124,596.37
  5. Step 5: Solve for x
    x = 1,355,124,596.37/42,373.17
  6. Step 6: Final answer
    x = 31,980.72

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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.