Home / 38,428.50-53,031.33-20,764.50

Finding the Fourth Proportional to 38,428.50, 53,031.33 and 20,764.50

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Solution

The fourth proportional to 38,428.50, 53,031.33 and 20,764.50 is: 28,655.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,428.50 : 53,031.33 = 20,764.50 : x
  2. Step 2: Convert to fraction form
    38,428.50/53,031.33 = 20,764.50/x
  3. Step 3: Cross multiply
    38,428.50x = 53,031.33 × 20,764.50
  4. Step 4: Simplify right side
    38,428.50x = 1,101,169,051.79
  5. Step 5: Solve for x
    x = 1,101,169,051.79/38,428.50
  6. Step 6: Final answer
    x = 28,655.01

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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.