Home / 26,430.40-39,632.80-14,731.20

Finding the Fourth Proportional to 26,430.40, 39,632.80 and 14,731.20

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Solution

The fourth proportional to 26,430.40, 39,632.80 and 14,731.20 is: 22,089.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,430.40 : 39,632.80 = 14,731.20 : x
  2. Step 2: Convert to fraction form
    26,430.40/39,632.80 = 14,731.20/x
  3. Step 3: Cross multiply
    26,430.40x = 39,632.80 × 14,731.20
  4. Step 4: Simplify right side
    26,430.40x = 583,838,703.36
  5. Step 5: Solve for x
    x = 583,838,703.36/26,430.40
  6. Step 6: Final answer
    x = 22,089.67

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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.