Home / 28,526.51-42,799.90-12,730.10

Finding the Fourth Proportional to 28,526.51, 42,799.90 and 12,730.10

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Solution

The fourth proportional to 28,526.51, 42,799.90 and 12,730.10 is: 19,099.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,526.51 : 42,799.90 = 12,730.10 : x
  2. Step 2: Convert to fraction form
    28,526.51/42,799.90 = 12,730.10/x
  3. Step 3: Cross multiply
    28,526.51x = 42,799.90 × 12,730.10
  4. Step 4: Simplify right side
    28,526.51x = 544,847,082.16
  5. Step 5: Solve for x
    x = 544,847,082.16/28,526.51
  6. Step 6: Final answer
    x = 19,099.67

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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.