Home / 40,421.40-55,776.52-22,515.14

Finding the Fourth Proportional to 40,421.40, 55,776.52 and 22,515.14

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Solution

The fourth proportional to 40,421.40, 55,776.52 and 22,515.14 is: 31,068.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,421.40 : 55,776.52 = 22,515.14 : x
  2. Step 2: Convert to fraction form
    40,421.40/55,776.52 = 22,515.14/x
  3. Step 3: Cross multiply
    40,421.40x = 55,776.52 × 22,515.14
  4. Step 4: Simplify right side
    40,421.40x = 1,255,816,156.51
  5. Step 5: Solve for x
    x = 1,255,816,156.51/40,421.40
  6. Step 6: Final answer
    x = 31,068.10

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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.