Home / 25,854.90-35,683.03-15,781.16

Finding the Fourth Proportional to 25,854.90, 35,683.03 and 15,781.16

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Solution

The fourth proportional to 25,854.90, 35,683.03 and 15,781.16 is: 21,780.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,854.90 : 35,683.03 = 15,781.16 : x
  2. Step 2: Convert to fraction form
    25,854.90/35,683.03 = 15,781.16/x
  3. Step 3: Cross multiply
    25,854.90x = 35,683.03 × 15,781.16
  4. Step 4: Simplify right side
    25,854.90x = 563,119,714.65
  5. Step 5: Solve for x
    x = 563,119,714.65/25,854.90
  6. Step 6: Final answer
    x = 21,780.00

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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.