Home / 20,929.32-31,363.26-10,526.76

Finding the Fourth Proportional to 20,929.32, 31,363.26 and 10,526.76

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Solution

The fourth proportional to 20,929.32, 31,363.26 and 10,526.76 is: 15,774.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,929.32 : 31,363.26 = 10,526.76 : x
  2. Step 2: Convert to fraction form
    20,929.32/31,363.26 = 10,526.76/x
  3. Step 3: Cross multiply
    20,929.32x = 31,363.26 × 10,526.76
  4. Step 4: Simplify right side
    20,929.32x = 330,153,510.84
  5. Step 5: Solve for x
    x = 330,153,510.84/20,929.32
  6. Step 6: Final answer
    x = 15,774.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.