Home / 25,312.32-34,916.40-15,233.76

Finding the Fourth Proportional to 25,312.32, 34,916.40 and 15,233.76

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Solution

The fourth proportional to 25,312.32, 34,916.40 and 15,233.76 is: 21,013.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,312.32 : 34,916.40 = 15,233.76 : x
  2. Step 2: Convert to fraction form
    25,312.32/34,916.40 = 15,233.76/x
  3. Step 3: Cross multiply
    25,312.32x = 34,916.40 × 15,233.76
  4. Step 4: Simplify right side
    25,312.32x = 531,908,057.66
  5. Step 5: Solve for x
    x = 531,908,057.66/25,312.32
  6. Step 6: Final answer
    x = 21,013.80

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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.