Home / 25,407.51-35,079.47-15,861.93

Finding the Fourth Proportional to 25,407.51, 35,079.47 and 15,861.93

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Solution

The fourth proportional to 25,407.51, 35,079.47 and 15,861.93 is: 21,900.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,407.51 : 35,079.47 = 15,861.93 : x
  2. Step 2: Convert to fraction form
    25,407.51/35,079.47 = 15,861.93/x
  3. Step 3: Cross multiply
    25,407.51x = 35,079.47 × 15,861.93
  4. Step 4: Simplify right side
    25,407.51x = 556,428,018.27
  5. Step 5: Solve for x
    x = 556,428,018.27/25,407.51
  6. Step 6: Final answer
    x = 21,900.14

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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.