Home / 28,554.13-42,831.20-7,777.63

Finding the Fourth Proportional to 28,554.13, 42,831.20 and 7,777.63

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Solution

The fourth proportional to 28,554.13, 42,831.20 and 7,777.63 is: 11,666.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,554.13 : 42,831.20 = 7,777.63 : x
  2. Step 2: Convert to fraction form
    28,554.13/42,831.20 = 7,777.63/x
  3. Step 3: Cross multiply
    28,554.13x = 42,831.20 × 7,777.63
  4. Step 4: Simplify right side
    28,554.13x = 333,125,226.06
  5. Step 5: Solve for x
    x = 333,125,226.06/28,554.13
  6. Step 6: Final answer
    x = 11,666.45

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Similar ratio
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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.