Home / 20,312.84-28,026.02-11,359.32

Finding the Fourth Proportional to 20,312.84, 28,026.02 and 11,359.32

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Solution

The fourth proportional to 20,312.84, 28,026.02 and 11,359.32 is: 15,672.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,312.84 : 28,026.02 = 11,359.32 : x
  2. Step 2: Convert to fraction form
    20,312.84/28,026.02 = 11,359.32/x
  3. Step 3: Cross multiply
    20,312.84x = 28,026.02 × 11,359.32
  4. Step 4: Simplify right side
    20,312.84x = 318,356,529.51
  5. Step 5: Solve for x
    x = 318,356,529.51/20,312.84
  6. Step 6: Final answer
    x = 15,672.67

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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.