Home / 35,981.40-53,972.10-9,688.80

Finding the Fourth Proportional to 35,981.40, 53,972.10 and 9,688.80

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Solution

The fourth proportional to 35,981.40, 53,972.10 and 9,688.80 is: 14,533.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,981.40 : 53,972.10 = 9,688.80 : x
  2. Step 2: Convert to fraction form
    35,981.40/53,972.10 = 9,688.80/x
  3. Step 3: Cross multiply
    35,981.40x = 53,972.10 × 9,688.80
  4. Step 4: Simplify right side
    35,981.40x = 522,924,882.48
  5. Step 5: Solve for x
    x = 522,924,882.48/35,981.40
  6. Step 6: Final answer
    x = 14,533.20

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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.