Home / 35,933.80-53,898.18-13,440.20

Finding the Fourth Proportional to 35,933.80, 53,898.18 and 13,440.20

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Solution

The fourth proportional to 35,933.80, 53,898.18 and 13,440.20 is: 20,159.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,933.80 : 53,898.18 = 13,440.20 : x
  2. Step 2: Convert to fraction form
    35,933.80/53,898.18 = 13,440.20/x
  3. Step 3: Cross multiply
    35,933.80x = 53,898.18 × 13,440.20
  4. Step 4: Simplify right side
    35,933.80x = 724,402,318.84
  5. Step 5: Solve for x
    x = 724,402,318.84/35,933.80
  6. Step 6: Final answer
    x = 20,159.36

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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.