Home / 28,424.64-39,223.24-16,488.76

Finding the Fourth Proportional to 28,424.64, 39,223.24 and 16,488.76

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Solution

The fourth proportional to 28,424.64, 39,223.24 and 16,488.76 is: 22,752.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,424.64 : 39,223.24 = 16,488.76 : x
  2. Step 2: Convert to fraction form
    28,424.64/39,223.24 = 16,488.76/x
  3. Step 3: Cross multiply
    28,424.64x = 39,223.24 × 16,488.76
  4. Step 4: Simplify right side
    28,424.64x = 646,742,590.78
  5. Step 5: Solve for x
    x = 646,742,590.78/28,424.64
  6. Step 6: Final answer
    x = 22,752.89

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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.