Home / 42,943.84-64,423.68-13,359.76

Finding the Fourth Proportional to 42,943.84, 64,423.68 and 13,359.76

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Solution

The fourth proportional to 42,943.84, 64,423.68 and 13,359.76 is: 20,042.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,943.84 : 64,423.68 = 13,359.76 : x
  2. Step 2: Convert to fraction form
    42,943.84/64,423.68 = 13,359.76/x
  3. Step 3: Cross multiply
    42,943.84x = 64,423.68 × 13,359.76
  4. Step 4: Simplify right side
    42,943.84x = 860,684,903.12
  5. Step 5: Solve for x
    x = 860,684,903.12/42,943.84
  6. Step 6: Final answer
    x = 20,042.10

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1.5x scale

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.