Home / 28,478.04-42,726.84-14,431.08

Finding the Fourth Proportional to 28,478.04, 42,726.84 and 14,431.08

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Solution

The fourth proportional to 28,478.04, 42,726.84 and 14,431.08 is: 21,651.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,478.04 : 42,726.84 = 14,431.08 : x
  2. Step 2: Convert to fraction form
    28,478.04/42,726.84 = 14,431.08/x
  3. Step 3: Cross multiply
    28,478.04x = 42,726.84 × 14,431.08
  4. Step 4: Simplify right side
    28,478.04x = 616,594,446.19
  5. Step 5: Solve for x
    x = 616,594,446.19/28,478.04
  6. Step 6: Final answer
    x = 21,651.58

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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.