Home / 25,698.60-38,547.90-13,987.26

Finding the Fourth Proportional to 25,698.60, 38,547.90 and 13,987.26

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Solution

The fourth proportional to 25,698.60, 38,547.90 and 13,987.26 is: 20,980.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,698.60 : 38,547.90 = 13,987.26 : x
  2. Step 2: Convert to fraction form
    25,698.60/38,547.90 = 13,987.26/x
  3. Step 3: Cross multiply
    25,698.60x = 38,547.90 × 13,987.26
  4. Step 4: Simplify right side
    25,698.60x = 539,179,499.75
  5. Step 5: Solve for x
    x = 539,179,499.75/25,698.60
  6. Step 6: Final answer
    x = 20,980.89

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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.