Home / 31,368.18-47,023.39-13,587.67

Finding the Fourth Proportional to 31,368.18, 47,023.39 and 13,587.67

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Solution

The fourth proportional to 31,368.18, 47,023.39 and 13,587.67 is: 20,368.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,368.18 : 47,023.39 = 13,587.67 : x
  2. Step 2: Convert to fraction form
    31,368.18/47,023.39 = 13,587.67/x
  3. Step 3: Cross multiply
    31,368.18x = 47,023.39 × 13,587.67
  4. Step 4: Simplify right side
    31,368.18x = 638,938,154.07
  5. Step 5: Solve for x
    x = 638,938,154.07/31,368.18
  6. Step 6: Final answer
    x = 20,368.99

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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.