Home / 42,970.80-64,417.32-15,262.32

Finding the Fourth Proportional to 42,970.80, 64,417.32 and 15,262.32

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Solution

The fourth proportional to 42,970.80, 64,417.32 and 15,262.32 is: 22,879.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,970.80 : 64,417.32 = 15,262.32 : x
  2. Step 2: Convert to fraction form
    42,970.80/64,417.32 = 15,262.32/x
  3. Step 3: Cross multiply
    42,970.80x = 64,417.32 × 15,262.32
  4. Step 4: Simplify right side
    42,970.80x = 983,157,751.38
  5. Step 5: Solve for x
    x = 983,157,751.38/42,970.80
  6. Step 6: Final answer
    x = 22,879.67

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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.