Home / 40,349.12-55,678.80-22,443.28

Finding the Fourth Proportional to 40,349.12, 55,678.80 and 22,443.28

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Solution

The fourth proportional to 40,349.12, 55,678.80 and 22,443.28 is: 30,970.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,349.12 : 55,678.80 = 22,443.28 : x
  2. Step 2: Convert to fraction form
    40,349.12/55,678.80 = 22,443.28/x
  3. Step 3: Cross multiply
    40,349.12x = 55,678.80 × 22,443.28
  4. Step 4: Simplify right side
    40,349.12x = 1,249,614,898.46
  5. Step 5: Solve for x
    x = 1,249,614,898.46/40,349.12
  6. Step 6: Final answer
    x = 30,970.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.