Home / 25,312.65-34,908.11-15,740.25

Finding the Fourth Proportional to 25,312.65, 34,908.11 and 15,740.25

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Solution

The fourth proportional to 25,312.65, 34,908.11 and 15,740.25 is: 21,707.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,312.65 : 34,908.11 = 15,740.25 : x
  2. Step 2: Convert to fraction form
    25,312.65/34,908.11 = 15,740.25/x
  3. Step 3: Cross multiply
    25,312.65x = 34,908.11 × 15,740.25
  4. Step 4: Simplify right side
    25,312.65x = 549,462,314.96
  5. Step 5: Solve for x
    x = 549,462,314.96/25,312.65
  6. Step 6: Final answer
    x = 21,707.03

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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.