Home / 25,015.40-34,510.54-14,402.78

Finding the Fourth Proportional to 25,015.40, 34,510.54 and 14,402.78

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Solution

The fourth proportional to 25,015.40, 34,510.54 and 14,402.78 is: 19,869.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,015.40 : 34,510.54 = 14,402.78 : x
  2. Step 2: Convert to fraction form
    25,015.40/34,510.54 = 14,402.78/x
  3. Step 3: Cross multiply
    25,015.40x = 34,510.54 × 14,402.78
  4. Step 4: Simplify right side
    25,015.40x = 497,047,715.30
  5. Step 5: Solve for x
    x = 497,047,715.30/25,015.40
  6. Step 6: Final answer
    x = 19,869.67

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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.