Home / 28,281.29-42,419.16-14,235.71

Finding the Fourth Proportional to 28,281.29, 42,419.16 and 14,235.71

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Solution

The fourth proportional to 28,281.29, 42,419.16 and 14,235.71 is: 21,352.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,281.29 : 42,419.16 = 14,235.71 : x
  2. Step 2: Convert to fraction form
    28,281.29/42,419.16 = 14,235.71/x
  3. Step 3: Cross multiply
    28,281.29x = 42,419.16 × 14,235.71
  4. Step 4: Simplify right side
    28,281.29x = 603,866,648.11
  5. Step 5: Solve for x
    x = 603,866,648.11/28,281.29
  6. Step 6: Final answer
    x = 21,352.16

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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.