Home / 19,476.80-29,258.40-18,689.60

Finding the Fourth Proportional to 19,476.80, 29,258.40 and 18,689.60

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Solution

The fourth proportional to 19,476.80, 29,258.40 and 18,689.60 is: 28,075.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,476.80 : 29,258.40 = 18,689.60 : x
  2. Step 2: Convert to fraction form
    19,476.80/29,258.40 = 18,689.60/x
  3. Step 3: Cross multiply
    19,476.80x = 29,258.40 × 18,689.60
  4. Step 4: Simplify right side
    19,476.80x = 546,827,792.64
  5. Step 5: Solve for x
    x = 546,827,792.64/19,476.80
  6. Step 6: Final answer
    x = 28,075.85

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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.