Home / 28,123.92-42,206.63-13,332.78

Finding the Fourth Proportional to 28,123.92, 42,206.63 and 13,332.78

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Solution

The fourth proportional to 28,123.92, 42,206.63 and 13,332.78 is: 20,009.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,123.92 : 42,206.63 = 13,332.78 : x
  2. Step 2: Convert to fraction form
    28,123.92/42,206.63 = 13,332.78/x
  3. Step 3: Cross multiply
    28,123.92x = 42,206.63 × 13,332.78
  4. Step 4: Simplify right side
    28,123.92x = 562,731,645.67
  5. Step 5: Solve for x
    x = 562,731,645.67/28,123.92
  6. Step 6: Final answer
    x = 20,009.00

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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.