Home / 42,988.70-64,446.30-16,319.76

Finding the Fourth Proportional to 42,988.70, 64,446.30 and 16,319.76

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Solution

The fourth proportional to 42,988.70, 64,446.30 and 16,319.76 is: 24,465.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,988.70 : 64,446.30 = 16,319.76 : x
  2. Step 2: Convert to fraction form
    42,988.70/64,446.30 = 16,319.76/x
  3. Step 3: Cross multiply
    42,988.70x = 64,446.30 × 16,319.76
  4. Step 4: Simplify right side
    42,988.70x = 1,051,748,148.89
  5. Step 5: Solve for x
    x = 1,051,748,148.89/42,988.70
  6. Step 6: Final answer
    x = 24,465.69

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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.