Home / 38,985.84-58,478.63-9,403.67

Finding the Fourth Proportional to 38,985.84, 58,478.63 and 9,403.67

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Solution

The fourth proportional to 38,985.84, 58,478.63 and 9,403.67 is: 14,105.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,985.84 : 58,478.63 = 9,403.67 : x
  2. Step 2: Convert to fraction form
    38,985.84/58,478.63 = 9,403.67/x
  3. Step 3: Cross multiply
    38,985.84x = 58,478.63 × 9,403.67
  4. Step 4: Simplify right side
    38,985.84x = 549,913,837.75
  5. Step 5: Solve for x
    x = 549,913,837.75/38,985.84
  6. Step 6: Final answer
    x = 14,105.48

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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.